Seven-coordinate Molybdenum Research Articles

DFT Study on the Interaction of Tris(benzene-1,2-dithiolato)molybdenum Complex with Water. A Hydrolysis Mechanism Involving a Feasible Seven-Coordinate Aquomolybdenum Intermediate.

In the present work, the reactivity of the tris(benzene-1,2-dithiolato)molybdenum complex ([Mo(bdt)3]) toward water is studied by means of the density functional theory (DFT). DFT calculations were performed using the M06, B3P86, and B3PW91 hybrid functionals for comparison purposes. The M06 method was employed to elucidate the reaction pathway, relative stability of the intermediate products, nature of the Mo-S bond cleavage, and electronic structure of the involved molybdenum species. This functional was also used to study the transference of electrons from the molybdenum center toward the ligands. The reaction pathway confirms that [Mo(bdt)3] undergoes hydrolysis, yielding dihydroxo-bis(benzene-1,2-dithiolato)molybdenum complex ([Mo(OH)2(bdt)2]) and benzenedithiol. The reaction takes place through seven transition structures, one of them involving an aquo seven-coordinate molybdenum intermediate stabilized by a lone pair (LP) LPO→LPMo hyperconjugative interaction. This heptacoordinate species allows understanding of the observed oxygen atom exchange between water and tertiary phosphines mediated by these complexes. Calculations also show that [Mo(C2H4S2)3] and [Mo(OH)2(C2H4S2)2] have d2 and d0 electronic configuration, and hence an electron pair must be transferred during the course of the hydrolysis. The frontier molecular orbital (FMO) analysis concludes that the electron pair is transferred in the rupture of the second Mo-S bond, from the occupied donating Mo dx2-y2 orbital to the unoccupied C2H4(SH)2 S-C σ* ligand orbital. This result is supported by the bond dissociation energy calculations, which demonstrate that the neutral dissociation of the second Mo-S bond is energetically the more favorable.

Synthesis, Characterization, and Reactivities of Molybdenum and Tungsten PONOP Pincer Complexes

A new series of molybdenum and tungsten tricarbonyl pincer complexes, bearing pyridine-based PONOP-type pincer ligands, have been synthesized and fully characterized. Addition of HBF4·Et2O to these tricarbonyl complexes generated seven-coordinate molybdenum and tungsten hydride complexes, and these compounds have been isolated in good yields. These metal hydrides show fluxional behavior in solution. The hydride ligands on these metal complexes are acidic in nature and are readily deprotonated by bases. The molybdenum hydride complex is shown to catalyze isomerization of 1-hexene to internal isomers under mild conditions.

Tris(3,5-di-tert-butylcatecholato)molybdenum(VI): Lewis Acidity and Nonclassical Oxygen Atom Transfer Reactions

In the solid state, tris(3,5-di-tert-butylcatecholato)molybdenum(VI) forms a dimer with seven-coordinate molybdenum and bridging catecholates. NMR spectroscopy indicates that the dimeric structure is retained in solution. The molybdenum center has a high affinity for Lewis bases such as pyridine or pyridine-N-oxide, forming seven-coordinate monomers with a capped octahedral geometry, as illustrated by the solid-state structure of (3,5-(t)Bu2Cat)3Mo(py). Structural data indicate that the complexes are best considered as Mo(VI) with substantial π donation from the nonbridging catecholates to molybdenum. Both the dimeric and the monomeric tris(catecholates) react rapidly with water to form free catechol and oxomolybdenum bis(catecholate) complexes. Monooxomolybdenum complexes are also obtained, more slowly, on reaction with dioxygen, with organic products consisting mostly of 3,5-di-tert-butyl-1,2-benzoquinone with minor amounts of the extradiol oxidation product 4,6-di-tert-butyl-1-oxacyclohepta-4,6-diene-2,3-dione. The pyridine-N-oxide complex reacts on heating (with excess pyO) to form initially (3,5-(t)Bu2Cat)2MoO(Opy) and ultimately MoO3(Opy), with quinone and free pyridine as the only organic products. The decay of (3,5-(t)Bu2Cat)3Mo(Opy) shows an accelerated, autocatalytic profile because the oxidation of its product, (3,5-(t)Bu2Cat)2MoO(Opy), produces an oxo-rich, catecholate-poor intermediate which rapidly conproportionates with (3,5-(t)Bu2Cat)3Mo(Opy), providing an additional pathway for its conversion to the mono-oxo product. The tris(catecholate) fragment Mo(3,5-(t)Bu2Cat)3 deoxygenates Opy in this nonclassical oxygen atom transfer reaction slightly less rapidly than does its oxidized product, MoO(3,5-(t)Bu2Cat)2.

Photochemical Reaction of Mo(CO)6 with Et2SiH2: Spectroscopic Characterization and Crystal Structure of the Bis{(μ-η2-hydridodiethylsilyl)tetracarbonylmolybdenum(I)} Complex [{Mo(μ-η2-H−SiEt2)(CO)4}2

Photolysis of Mo(CO)6 in n-heptane solution creates a coordinatively unsaturated d6 species, which interacts with the Si−H bond of Et2SiH2 and leads to the formation of Mo−H and Mo−Si bonds. The formation of a Mo−H bond was corroborated by 1H NMR spectroscopy due to the detection of a high-field resonance at δ = −8.33 flanked by 29Si satellites. The formation of Mo−Si bonds was confirmed by the detection of two sets of 29Si satellites on the hydride signal, which provided JSi-H = 57 and 33 Hz, and by the 29Si{1H} NMR spectrum, which revealed a resonance at δ = 207.7. The latter signal in the 29Si NMR spectrum was observed as a doublet of quintets with 1JSi-H = 58 Hz and 2JSi-H = 41 Hz. The 95Mo NMR spectrum showed at high field a resonance at δ = −3785, characteristic for seven-coordinate molybdenum compounds. The molecular structure of a novel bis{(μ-η2-hydridodiethylsilyl)tetracarbonylmolybdenum(I)} complex, [{Mo(μ-η2-H−SiEt2)(CO)4}2], was established by single-crystal X-ray diffraction studies. The mol...

Reactivity of [Mo(μ-Cl)(SnCl 3)(CO) 3(NCMe) 2] towards norbornadiene. : X-ray crystal structure of [Mo(μ-Cl)(SnCl 3)(CO) 2(η 4-C 7H 8)(NCMe)

Reaction of [Mo(μ-Cl)(SnCl 3)(CO) 3(NCMe) 2] ( 1) with bicyclo[2.2.1]hepta-2,5-diene (norbornadiene) at room temperature in dichloromethane solution affords a mixture of compounds containing norbornadiene ligands. The formation of [Mo(μ-Cl)(SnCl 3)(CO) 3(η 4-C 7H 8)] ( 2) is observed from the beginning of the reaction, but other compounds, such as [Mo(μ-Cl)(SnCl 3)(CO) 2(η 4-C 7H 8)(NCMe)] ( 3), [Mo(SnCl 3) 2(CO)(η 4-C 7H 8)(NCMe) 2] ( 4) and [MoCl 2(CO)(η 4-C 7H 8)(NCMe) 2] ( 5), are also formed in variable amounts, as shown by IR and NMR investigation of the reaction mixture. The structure of a novel compound 3 was established by the single-crystal X-ray diffraction method. The environment of the molybdenum atom in 3 can be described as a distorted pentagonal bipyramid. Two carbonyl ligands are mutually cis. The IR, 1H and 13C NMR spectra of new molybdenum complexes containing norbornadiene ligands are also described and correlate with the crystallographically observed geometry. Reaction of 3 with an excess of norbornadiene is accompanied by the ring-opening metathesis polymerisation and the formation of polynorbornadiene. The initiation mechanism of this catalytic reaction by seven-coordinate molybdenum(II) compounds is proposed.

Ring-Opening Metathesis Polymerization of 5,6-Bis(Chloromethyl)-Norbornene by Tungsten(II) and Molybdenum(II) Complexes

The reaction of endo,endo-5,6-bis(chloromethyl)bicyclo[2.2.1]hept-2-ene in the presence of seven-coordinate tungsten(II) and molybdenum(II) complexes of the type [MCl(M'Cl3)(CO)3(NCMe)2] (M'=W, Mo; M=Sn, Ge) leads to ring-opening metathesis polymerization and to the formation of high-molecular-weight soluble polymers with dispersity index in the range 1.4-2.0 and number average molecular weights in the range 300 000-790 000 g mol-1. The geometric structure of these polymers was determined by means of 1H- and 13C-NMR spectroscopy. Molybdenum catalysts gave polymers with lower cis vinylene content (20-50%), whereas tungsten catalysts gave polymers with higher cis vinylene content (84-95%).

The initiation of ring-opening metathesis polymerisation of norbornadiene by seven-coordinate molybdenum(II) compounds. X-ray crystal structure of [Mo(μ-Cl)(SnCl 3)(CO) 3(η 4-NBD)

The new heterobimetallic complex [Mo(μ-Cl)(SnCl 3)(CO) 3(η 4-NBD)] ( 1) has been prepared by reaction of [(CO) 4Mo(μ-Cl) 3Mo(SnCl 3)(CO) 3] with norbornadiene (NBD) at room temperature. The structure of complex 1 was established by X-ray crystallography. The IR, 1H- and 13C-NMR spectra of 1 are also described and can be correlated with the crystallographically observed geometry. In the presence of an excess of NBD compound 1 initiates the ring-opening metathesis polymerisation (ROMP). The initiation mechanism of ROMP by seven-coordinate molybdenum(II) compounds have been discussed. The microstructure of polynorbornadiene formed was determined by 1H- and 13C-NMR spectroscopy.

A novel Mo–Sn chlorocarbonyl compound. X-ray crystal structure of [(CO) 4Mo(μ-Cl) 3Mo(SnCl 3)(CO) 3] and [MoCl(SnCl 3)(CO) 3(NCEt) 2

The new heterobimetallic complex [(CO) 4Mo(μ-Cl) 3Mo(SnCl 3)(CO) 3] ( 1) has been prepared by photochemical reaction of Mo(CO) 6 with SnCl 4. The structure of complex 1 was established by X-ray crystallography. The basic structural units of 1 are two seven-coordinate molybdenum atoms, which are linked by three chlorine atoms occupying a bridging position between the molybdenum atoms. The mononuclear seven-coordinate complex [MoCl(SnCl 3)(CO) 3(NCMe) 2] ( 2) is formed by reaction of [(CO) 4Mo(μ-Cl) 3Mo(SnCl 3)(CO) 3] with acetonitrile. Treatment of compound 2 with propionitrile affords [MoCl(SnCl 3)(CO) 3(NCEt) 2] ( 3). A single-crystal X-ray diffraction study of the complex [MoCl(SnCl 3)(CO) 3(NCEt) 2] ( 3) showed that the environment of the molybdenum atom is a distorted capped octahedron with the SnCl 3 anionic ligand occupying the unique capping position above an octahedral face defined by the bridging chlorine and two carbonyl groups.

Chemistry of the azine phosphine ligand Z,E-PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4): crystal structure of [Mo(CO) 4{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4)}

Condensation of Z-PPh 2CH 2C(Bu t)=NNH 2 with 4-nitroacetophenone gave the azine phosphine Z,E-PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4) ( I). The corresponding phsophine oxide II was prepared by treatment of I with H 2O 2. The phosphine I with [Mo(CO) 4(nbd)] (nbd=norbornadiene) gave [Mo(CO) 4{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4)}] ( 1a); the corresponding tungsten 1b and chromium 1c complexes were made similarly. The crystal structure of 1a was determined by X-ray diffraction and showed the presence of a six-membered chelate ring with the bulky 4-nitrophenyl group held close to the metal. Oxidation of 1a with bromine gave the seven-coordinate molybdenum (II) complex 2. Treatment of [PtMe 2(cod)] (cod=cycloocta-1,5-diene) with I at 20°C gave the dimethyl-platinum (II) complex [PtMe 2{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4)}] ( 3a) which with MeI gave the iodotrimethylplatinum(IV) complex 4. Treatment of 3a with C≡O opened the chelate ring to give the dimethyl(carbonyl)platinum(II) complex 5 containing a monodentate phosphine ligand. When 3a was heated in toluene solution at 110°C it gave the cyclometallated methylplatinum(II) complex [PtMe{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 3NO 2-4)}] ( 6). Treatment of 6 with MeI gave the platinum(IV) complex 7. The dichloropalladium(II) complex [PdCl 2{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 4NO 2-4)}] ( 3b) was prepared by treatment of [PdCl 2(NCPh) 2] with I in CH 2Cl 2. Treatment of [PtCl 2(NCMe) 2] with 2 equiv. of I gave the trans-bis(phosphine) complex 8. When 2 equiv. of I were treated with [PtCl 2(cod)] followed by NH 4PF 6 this gave the salt 9a containing two six-membered chelate rings; the analogous palladium(II) 9b) salt was also prepared. Treatment of 2 equiv. of I with [PtCl 2(cod)] followed by NH 4PF 6 gave the PF 6 salt 10 containing a six-membered chelate ring and a monodentate ligand. When 10 was treated with AgNO 3 followed by NH 4PF 6 this gave the bis-chelate complex 11 containing five- and six-membered chelate rings. Treatment of [IrCl(CO) 2( p-toluidine)] with I gave the cyclometallated iridium(III) hydride complex [IrHClCO{PPh 2CH 2C(Bu t)=N-N=CMe(C 6H 3NO 2-4)}] ( 12). [RuCl 2(PPh 3) 3] with the phosphine I resulted in the Ru(II) complex 13 in which the ortho hydrogens of the 4-nitrophenyl group are agostically interacting with ruthenium. Proton, Phosphorus-31, some carbon-13 NMR and IR data have been obtained. Crystals of 1a are orthorhombic, space group Pna2 1, with a = 1819.3(2), b = 1050.0(1), c = 1614.8(2) pm and Z = 4; final R = 0.0191 for 2616 observed reflections.

Preparation of molybdenum(II) η2-vinyl complexes via sequential CCl activation and alkyne insertion

Reaction of the Schiff base ligand 1, prepared by the condensation of 2-chlorobenzaldehyde and N, N-dimethylethylenediamine with ( η 6-C 6H 5CH 3)Mo(CO) 3 2 resulted in the formation of the seven-coordinate molybdenum(II) metallacycle, 3, by oxidative addition of the strong aromatic CCl bond at molybdenum(0). The metallacycle 3 undergoes migratory insertion with electron-deficient internal acetylenes to afford novel η 2-vinyl complexes 4, resulting in net replacement of a CCl bond by a CC bond.

Heterobimetallic MoSn complexes with seven-coordinate molybdenum and five-coordinate tin

New heterobimetallic complexes [Mo(SnRCl 2)(CH 3CN) 2(CO 3)(Cl)] [( 1)R  C 6H 5, ( 2) R  CH 3] have been obt

Synthesis and characterization of some novel pentagonal bipyramidal 2,6-diacetylpyridine bis(benzoylhydrazone) (DAPBH 2) complexes of Rhenium(III) and molybdenum crystal and molecular structure of [ReCl(DAPB)(PPh 3)]. An investigation of the Mössbauer spectroscopy of [Fe IICl 2(DAPBH 2)]·H 2O and [Fe IIICl(DAP-Me-B)(H 2O)

Reaction of [ReCl 3(MeCN)(PPh 3) 2] with the planar pentadentate diacetylpyridinebis(benzoylhydrazone) ligands DAPBH 2 and DAP-Me-BH 2 and triethylamine in isopropanol under reflux gave the dark brown seven-coordinate complexes [ReCl(L)PPh 3], containing the doubly deprotonated pentadentate ligand [L = DAPB(2−)( 1); L = DAP-Me-B(2−) ( 2)]. Complex 1 has been characterized by crystallography. The central rhenium atom in 1 is seven-coordinate, with pentagonal bipyramidal geometry with the axial positions being occupied by the chloride ion and the triphenylphosphine ligand. The DAPB coordinates in a pentadentate manner in the equatorial plane of the complex and the five donor atoms of the doubly deprotonated DAPB(2−) ligand form an approximately planar pentagon. The rhenium atom is slightly displaced out of the ligand plane towards the phosphorus atom. Reaction of 2 with Ag[BF 4] in CH 2Cl 2 at room temperature gave a black complex of stoichiometry [Re(DAP-Me-B)(PPh 3)][BF 4] ( 3). Reaction of [MoCl 4(MeCN) 2] with DAP-Me-BH 2 and Et 3N in dry CH 2Cl 2 under reflux gave deep green [MoCl 2(DAP-MeB 2)] ( 4), formulated as a seven-coordinate molybdenum(II) complex containing the doubly deprotonated pentadenate DAP-MeBH 2 ligand in the equatorial plane of the complex. The Mössbauer spectra of the complexes [FeCl 2(DAPBH 2)]·H 2O ( 5) and [FeCl(DAPMe-B)(H 2O)] ( 6) were investigated as a function of temperature. The spectrum of 5 was consistent with high-spin seven-coordinate iron(II) and 6 was shown to contain two distinct iron(III) sites; possible structures are discussed.

Syntheses and structures of the seven-coordinate molybdenum carbonyl complexes containing both dithiocarbamate and the uninegative nitrogen-tripod ligand

Syntheses and structures of the seven-coordinate molybdenum carbonyl complexes containing both dithiocarbamate and the uninegative nitrogen-tripod ligand

Synthesis and reactions with donor ligands of the mixed halide seven-coordinate molybdenum(II) complex [MoClI(CO)3(NCMe)2

The complexfac-[Mo(CO)3(NCMe)3] (preparedin situ) reacts with an equimolar amount of ICl to give the oxidised product [MoClI(CO)3(NCMe)2] (1) in high yield. Equimolar quantities of (1) and L (L=PPh3, AsPh3 or SbPh3) react to yield the iodo-bridged dimers [Mo-(μ-I)Cl(CO)3L]2 (2)–(4). The reaction of [MoClI(CO)3(NCMe)2] with two equivalents of L (L=PPh3, AsPh3 or SbPh3) yields the acetonitrile-displaced products [MoClI(CO)3L2] (5)–(7). The bidentate ligands L^L {L^L=2,2-bipyridyl (bipy), 1,10-phenanthroline (1,10-phen), CyN=CHCH=NCy, Ph2P(CH2)nPPh2 (n=1–4)} react with an equimolar quantity of (1) to give [MoClI(CO)3(L^L)] (8)–(14). The compounds have been characterised by elemental analysis and spectroscopy. Magnetic susceptibility measurements show the compounds to be diamagnetic.

Reactions of the molybdenum complex [MoCl(SnCl3)(CO)3(NCMe)2] with one equivalent of L {L = PPh3, AsPh3 SbPh3, py, 3brpy, 4brpy and P(OPh)3} to give [Mo(,μ-Cl)(SnCl3)(CO)3L]2. Bridge cleavage reactions of [Mo(,μ-Cl)(SnCl3)(CO)3(PPh3)

Abstract The seven-coordinate molybdenum complex [MoCl(SnCl 3 )(CO) 3 ,(NCMe) 2 ] reacts rapidly with 1 equivalent of L [L = PPh 3 , AsPh 3 , SbPh 3 , py, 3Brpy, 4Brpy and P(OPh) 3 ], in acetone at room temperature, to afford the chloro-bridged compounds [Mo(μ-Cl)(SnCl 3 )(CO) 3 L] 2 . The triphenylphosphine dimer [Mo(,μ-Cl)(SnCl 3 )(CO) 3 (PPh 3 )] 2 reacts with 2 equivalents of L′ [L′ = PPh 3 , SbPh 3 , py and P(OPh) 3 ] to give the bridge-cleaved mononuclear compounds [MoCl(SnCl 3 )(CO) 3 LL′].

Seven-coordinate molybdenum(II) carbonyl complexes containing two different bidentate ligands (2,2′-bipyridyl and Ph 2PCH 2PPh 2 or Ph 2PCH 2CH 2PPh 2)

The complexes MoX 2(CO) 3(bipy) (X=Cl, Br, I) undergo substitution of a single CO ligand by Ph 2PCH 2PPh 2 (dppm) and Ph 2PCH 2CH 2PPh 2 (dppe) to give seven-coordinate complexes MoX 2(CO) 2(bipy)(LL) (X=Cl, Br, I; LL=dppm, dppe). Spontaneous isomerization to [MoX(CO) 2(bipy)(dppm)]X was observed for X=I in dichloromethane at room temperature. However MoCl 2(CO) 2(bipy)(dppm) led to MoCl 2(CO)(bipy)(dppm) by sunlight irradiation. The cationic species [MoX(CO) 2(bipy)(LL)]BPh 4 (X=Cl, Br; LL=dppm and X=Cl, Br, I; LL=dppe) were also prepared by use of NaBPh 4. Reactions of MoX 2(CO) 3(bipy) (X=Cl, Br) with dppe in molar ratios 2/1 (complex/ligand) afforded the slightly soluble compounds formulated as dimers, Mo 2X 4(CO) 4(bipy) 2(μ-dppe). We also report the possibility of preparing MoCl 2(CO) 3(bipy) by direct halogenation of Mo(CO) 4(bipy) at room temperature in dichloromethane.

The synthesis of six- and seven-coordinate molybdenum and tungsten(II) dicarbonyl complexes containing monodentate phosphine ligands

On passing a stream of dry N 2 gas through a solution of Mo(CO) 3(PR 3) 2X 2 (PR 3 = PEtPh 2, PMe 2Ph or PEt 2Ph, X = Br; PR 3 = PMePh 2, X = Cl, Br or I) in acetonitrile at room temperature, or W(CO) 3- (PR 3) 2X 2 (PR 3 = PMePh 2 or PMe 2Ph, X = Br) in boiling acetonitrile, the yellow, monomeric 7- coordinate dicarbonyls M(CO) 2(NCMe)(PR 3) 2X 2 are formed in high yields. The nitrile ligand is readily displaced from M(CO) 2(NCMe)(PR 3) 2X 2 (M = Mo, PR 3 = PEtPh 2 or PEt 2Ph, X = Br; PR 3 = PMePh 2, X = I; M = W, PR 3 = PMePh 2, X = Br) by passing a vigorous stream of N 2 gas through a solution of these complexes dissolved in chlorinated or ketonic solvents yielding new, highly coloured 6-coordinate d 4 M(CO) 2(PR 3) 2X 2 derivatives.

Six-coordinate molybdenum(II) complexes of 2,2′-bipyridine containing thiolate, nitrate, nitrite and pentane-2,4-dionate ligands

Substitution of 2,2′-bipyridine (bipy) in the seven-coordinate molybdenum(II) salt cis-[Mo(CO)2(bipy)2(NCMe)][BF4]2 by sodium 1,1-dimethylethanethiolate gives six-coordinate red trans,cis-[Mo(SCMe3)2(CO)2(bipy)] and by sodium N,N-diethyldithiocarbamate gives purple cis-[Mo(CO)2(S2CNEt2)(bipy)][BF4]. Tetrabutylamonium nitrate also displaces bipy to form green cis-[Mo(η2-NO3)(CO)2(bipy)][BF4]. Substitution of CO in the same seven-coordinate molybdenum(II) salt by nitrite produces green [Mo(ONO)(CO)(bipy)2][BF4], and by pentane-2,4-dione (acacH) gives purple [Mo(acac)(bipy)2][BF4]. The products of the reactions have been characterised by microanalysis and IR,1H NMR, and electronic absorption spectroscopy.

Seven-coordinated molybdenum(II) complexes containing carbonyl, triphenylphosphine, and O-donor or S-donor anionic bidentate ligands

A series of seven-coordinate molybdenum(II) complexes containing carbonyl, triphenylphosphine, bromide and/or O-donor and S-donor anionic bidentate ligands have been prepared in high yield. The synthesis involves the reaction of the six-coordinate complex Mo(CO)2(PPh3)2Br2 with the sodium salt of the appropriate ligand, in dichloromethane/methanol solution. The new complexes Mo(CO)2(PPh3)2Br(XOCR) (X = O, R = H, Me, Et, Ph, Cl3C; X = S, R = Me, Ph). Mo(CO)2(PPh3(XOCR)2(X = O, R = H, Me, Et, Ph; X = S, R = Me, Ph), Mo(CO)(PPh3)2(SOCR)2 (R = Me, Ph) and Mo(CO)2(PPh3)2Br(NO3) have been characterized by elemental analysis, IR spectroscopy, and conductivity measurements. An improved synthesized of Mo(CO)2(PPh3)2(S2COCH3)2 is described.

Higher coordinate complexes. 23. Reductive coupling of isocyanide ligands in seven-coordinate molybdenum(II) mixed isocyanide bipyridine complexes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHigher coordinate complexes. 23. Reductive coupling of isocyanide ligands in seven-coordinate molybdenum(II) mixed isocyanide bipyridine complexesSteve. Warner and Stephen J. LippardCite this: Organometallics 1986, 5, 8, 1716–1725Publication Date (Print):August 1, 1986Publication History Published online1 May 2002Published inissue 1 August 1986https://doi.org/10.1021/om00139a033RIGHTS & PERMISSIONSArticle Views140Altmetric-Citations30LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts