Properties Of Bis Research Articles

Synthesis and properties of bis(dialkylphosphino)ethane iron dihydrides

AbstractSyntheses and properties of the iron bisphosphinoethane complexes FeH2(PP)2 and FeHCl(PP)2[PPR2PCH2CH2CH2PR2, where RMe (PPDMPE), Et(PPDEPE), and n‐Pr (PPDprPE)] are reported. The complexes can be formed by reduction of the corresponding dichlorides FeCl2(PP)2 with lithium aluminium hydride in THF solution provided that ethanol or more acidic reagents are not employed during the reaction work‐up. The dihydrides are notably basic compounds and can be protonated reversibly by alcohols.The dihydrides exist as equilibrating mixtures of cis and trans isomers in solution. The cis isomers of each of the dihydrides are fluxional on the NMR timescale and NMR studies indicate that the interconversion of cis isomers does not necessarily proceed via the trans isomer.

Electrochemical properties of bis(pyrylium) salts containing a phenylene bridge

Bis(pyrylium) cations were obtained by the condensation of methyl-substituted pyrylium salts with terephthalic dialdehyde. Their electrochemical reduction in dimethylformamide was studied by cyclical volt-amperometry on a platinum disk electrode. The reduction of compounds of the bis(pyrylium) series proceeds in two steps with the formation of cation radicals in the first step and a neutral quinoid particle in the second step.

Syntheses and properties of bis{bis(trimethylphosphine)tetrahydrodiboron}copper(1+) halide (halide = chloride, iodide) and x-ray crystal structure of the iodide

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSyntheses and properties of bis{bis(trimethylphosphine)tetrahydrodiboron}copper(1+) halide (halide = chloride, iodide) and x-ray crystal structure of the iodideMamoru Shimoi, Kinji Katoh, Hiromi Tobita, and Hiroshi OginoCite this: Inorg. Chem. 1990, 29, 4, 814–817Publication Date (Print):February 1, 1990Publication History Published online1 May 2002Published inissue 1 February 1990https://doi.org/10.1021/ic00329a048RIGHTS & PERMISSIONSArticle Views159Altmetric-Citations34LEARN 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 (546 KB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts

Electronic spectra and electrochemical properties of bis(dimethylglyoximato)iron(II) complexes containing axialN-heterocyclic ligands

Gaussian analysis of the electronic spectra of 25 bis(dimethylglyoximato)iron(II) complexes containing axialN-heterocyclic ligands are discussed and comparisons made with the spectra of the corresponding [Fe(CN)5L]3− complexes. The energies of the metal-to-axial and metal-to-equatorial ligand charge-transfer transitions exhibit opposite trends, correlating with the electronic properties of the axial ligands, and with the redox potentials of the FeII/FeIII couple.

ChemInform Abstract: Designed Synthesis of a Radical Cation Salt of Ni(tmp): Structural, Magnetic, and Charge‐Transport Properties of Bis((5,10,15,20‐tetramethylporphyrinato)nickel(II)) Hexafluorophosphate.

AbstractElectrochemical oxidation of (5,10,15,20‐tetramethylporphyrinato)‐Ni(II), Ni(tmp), in the presence of PF6‐ ions affords the new molecular conductor, the title compound (space group P4/nnc, Z=2) which is comprised of partially oxidized (+1/2) S4‐ruffled Ni(tmp) molecules stacked metal‐over‐metal.

Influence of remote substituents on the properties of bis(terpyridyl)ruthenium(II) complexes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of remote substituents on the properties of bis(terpyridyl)ruthenium(II) complexesRandolph P. Thummel, Vidyadhar Hegde, and Yurngdong JahngCite this: Inorg. Chem. 1989, 28, 16, 3264–3267Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published inissue 1 August 1989https://doi.org/10.1021/ic00315a037RIGHTS & PERMISSIONSArticle Views348Altmetric-Citations31LEARN 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-Alerts Get e-Alerts

Synthesis, structures and properties of bis(2-alkyl- and bis(2-phenylthiomethyl)benzimidazole)copper(II) dichloride and dibromide

Synthesis, structures and properties of bis(2-alkyl- and bis(2-phenylthiomethyl)benzimidazole)copper(II) dichloride and dibromide

Reactivity of new osmium dihydrides with arenediazonium cations: preparation and properties of bis(aryldiazene) and mono(aryldiazenido) complexes. A comparison with analogous iron and ruthenium derivatives

Hydride complexes [OsH2L4][L = P(OEt)3 or PPh(OEt)2] were prepared. Their reactions with arenediazonium cations led to the synthesis of [Os(RNNH)2L4][BPh4]2 and [OsH(RNNH)L4]BPh4(R = Ph, 4-MeC6H4, or 4-MeOC6H4) complexes which were characterized by 1H and 31P n.m.r. data (with 15N isotopic substitution). The compounds [Os(4-MeC6H4NNH)(4-MeC6H4NC)L4][BPh4]2 were also prepared. The reaction of the bis(aryldiazene) derivatives with NEt3 led to new five-co-ordinate aryldiazenido complexes [Os(RN2)L4]BPh4(R = Ph or 4-MeC6H4). Protonation of the diazenido compounds with CF3CO2H and HBF4 gave the six-co-ordinate mono(diazene)[Os(CF3CO2)(RNNH)L4]BPh4 and the five-co-ordinate [Os(RNNH)L4]BPh4(R = 4-MeC6H4) derivatives, respectively. Infrared and 1H and 31P n.m.r. data for these complexes are reported.

Molecular structure and bonding properties of bis(1-methylimidazole)bis(perchlorato)bis(pyridineN-oxide)copper(II)

The crystal and molecular structure of bis(1-methylimidazole)bis(perchlorato)bis(pyridineN-oxide)copper(II) have been determined using three-dimensional x-ray diffraction data. The complex crystallizes in space group P21/c with Z=2. The cell dimensions area=9.355(3),b=14.363(4),c=9.698(4) A, and β=106.40(3)o. Least-squares refinement of the structure has yielded a final R value of 0.049 for 1235 independent reflections. The centrosymmetric structure consists oftrans pairs of 1-methylimidazole and pyridineN-oxide figands forming a square planar geometry with Cu−N and Cu−O bond lengths of 1.963(4) A and 1.948(4) A, respectively. The two perchlorate ions are located above and below the square plane with Cu−O distances of 2.590(5) A. The uv-vis and i.r. spectra and bonding properties of the title compound are discussed with reference to the structure.

ChemInform Abstract: Preparation and Properties of Bis(diisopropylammonium) and Bis(diisobutylammonium) Tetrahalocuprates(II).

ChemInformVolume 19, Issue 31 Organoelement Compounds ChemInform Abstract: Preparation and Properties of Bis(diisopropylammonium) and Bis(diisobutylammonium) Tetrahalocuprates(II). Z. BIELA, Z. BIELA Dep. Inorg. Chem., Slovak Techn. Univ., 81237 Bratislava, CzechoslovakiaSearch for more papers by this authorV. SIROKLIN, V. SIROKLIN Dep. Inorg. Chem., Slovak Techn. Univ., 81237 Bratislava, CzechoslovakiaSearch for more papers by this author Z. BIELA, Z. BIELA Dep. Inorg. Chem., Slovak Techn. Univ., 81237 Bratislava, CzechoslovakiaSearch for more papers by this authorV. SIROKLIN, V. SIROKLIN Dep. Inorg. Chem., Slovak Techn. Univ., 81237 Bratislava, CzechoslovakiaSearch for more papers by this author First published: August 2, 1988 https://doi.org/10.1002/chin.198831264AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume19, Issue31August 2, 1988 RelatedInformation

A new class of low-spin cobalt(II) chelates. Molecular structure and properties of bis(1-ethyl-3-phenyltriazene-1-olato)cobalt(II) and related complexes

1-Aryl-1-hydroxy-3-X-phenyltriazenes bind to cobalt(II) to yield the first examples of centrosymmetric bis-bidentate CoIIN2O2 chromophores as shown by magnetic, X-ray crystallographic, and e.s.r. studies; a new type of spin-state isomerism was found.

Polymers derived from bis(4-hydroxyphthalimide)s, I preparation and properties of bis(4-hydroxyphthalimide)s

Monomere ayant deux groupes hydroxy reactifs a partir d'anhydride hydroxy-4 phtalique. Polycondensation interfaciale en polyesterimide

ChemInform Abstract: Properties of Bis(diethylamido)imidotrichloromethylphosphonate. Part 5. Reactions with Ketones.

AbstractThe phosphonic diamide imide (II) reacts with the carbonyl compounds (Ia) ‐ (If) to give the phosphorylated azomethines (III).

ChemInform Abstract: Preparation and Properties of Bis(oxalato)platinate and Bis(1,3‐dithiole‐2‐thione‐ 4,5‐dithiolato)metallate (M: Ni, Pd, and Pt) Anion Salts with the 1,4‐Diethylpyrazinium Dication.

Abstract[NBu4]2[Pt(C2O4)2] reacted with (II) as BF4 salt in MeCN to give the partially oxidized salt (III).

(Porphyrinato)bis(phthalocyaninato)dilanthanide(III) complexes presenting a sandwich triple-decker-like structure

Bis(phthalocyaninato)lanthanide(III) derivatives presenting a sandwich-type structure have been known for many years. These complexes are still intensively studied due to their semi-conductor and electrochromic properties. The synthesis and properties of bis(porphyrinato) and tris(porphyrinato)lanthanide(III) derivatives have also been reported. X-ray structural studies have shown that bis(porphyrinato) complexes have geometries that are similar to those displayed by the LnPc/sub 2/ complexes (Ln = lanthanide; Pc = phthalocyanine) whereas the tris(porphyrinato) derivatives present structures in which two lanthanide(III) metal cations are sandwiched between three macrocyclic rings in triple-decker-like geometry. Structural, magnetic, and spectroscopic properties of the green form of lutetium(III) bis(phthalocyanate) have shown that this complex is in a nonprotonated, one-electron-oxidized ligand form, Ln (Pc/sup 2 -/) (Pc..pi..). In such a molecule, the unpaired spin could be either located on one phthalocyanine ring or delocalized over both rings. In order to force the localization of the unpaired spin on one ring, the authors have tried to synthesize a dissymmetric mixed-ligand, porphyrin (Por) phthalocyanine (Pc), lanthanide sandwich Ln(Por)(Pc). However, under the conditions used, the authors obtained dilanthanide sandwich-triple-decker-like complexes. (Por(Ln)Pc(Ln)Pc) in which the two metal cations are sandwiched between three macrocyclic rings. They report the synthesis and spectral properties of such derivatives obtained with more » Ln = Nd(III), Eu(III), and Gd(III) and with meso-tetrakis(4-methoxyphenyl) porphyrin (H/sub 2/T(4-OCH/sub 3/)PP) and phthalocyanine (H/sub 2/Pc). The X-ray structure of the neodymim complex is also reported. « less

ChemInform Abstract: Synthesis and Properties of Bis(2,2‐dimethylaziridinyl)phosphinic Amides: A Series of New Antineoplastic Agents.

AbstractDimethylaziridin (I) liefert über (II) die Amide (III), die auf Wirkung gegen P388‐Leukämie geprüft werden.

Preparation and properties of bis(oxalato)platinate and bis(1,3-dithiole-2 thione-4, 5-dithiolato)metallate (M = Ni, Pd, and Pt) anion salts with the 1,4-diethylpyrazinium dication

Reactions of [Pt(C 20 4) 2] 2− (C 20 4 2− oxalate anion) and [M(C 3S 5) 2] m− (C 3S 5 2−  1,3-dithiole-2- thione-4,5-dithiolate anion; m  2 for Ni, Pd and Pt; m = 1 for M  Ni and Pt) with the 1,4-diethylpyrazinium dication (DEPZ 2+) in acetonitrile gave partially oxidized metallate-anion salts: [DEPZ] 0.9 [Pt(C 20 4) 2] and [DEPZ] 0.3–0.35 [M(C 3S 5) 2] (M  Ni, Pd and Pt). They behave as typical semiconductors in the temperature range of −30–+40 °C; electrical resistivities of the [Pt(C 20 4) 2] and [M(C 3S 5) 2] salts are 3.7 × 10 5 and 13−620 Ω cm, respectively, at 25 °C for compacted peltets. IR and X-ray photoelectron spectra indicate that the partial oxidation of [M(C 3S 5) 2] m− by DEPZ 2+ occurs essentially at the dithiolato ligand.

Preparation and properties of bis(acetonitrile)iodine(I) hexafluoromolybdate(V) and hexafluorouranate(V)

Download options Please wait... Article information DOI https://doi.org/10.1039/DT9860000337 Article type Paper Download Citation J. Chem. Soc., Dalton Trans., 1986, 337-341 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS Permissions Request permissions Preparation and properties of bis(acetonitrile)iodine(I) hexafluoromolybdate(V) and hexafluorouranate(V) G. M. Anderson and J. M. Winfield, J. Chem. Soc., Dalton Trans., 1986, 337 DOI: 10.1039/DT9860000337 To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page. If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given. If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page. Read more about how to correctly acknowledge RSC content. Search articles by author Gerard M. Anderson John M. Winfield

One-dimensional metals based on platinum complexes

The solid state properties of one-dimensional metals of the type M x [Pt(C 2 O 4 ) 2 ]. 6H 2 O (where 0.8 < x < 0.84 and M = Mg, Fe, Co, Ni, Cu, Zn) are reviewed and compared with those of K 2 [Pt(CN) 4 ]Br 0.30 . 3H 2 O. The structures and properties of bis(dithiolene)platinates of Group One cations are compared and related to the charge on the anion.

Preparation and Some Properties of Bis(trimethylenediamine)cobalt(III) Complexes with a Bidentate-N,S or -N,Se Ligand

Abstract Seven optically active cobalt(III) complexes of [Co(bidentate-N,S or -N,Se)(tn)2] type were prepared for the first time; bidentate-N,S or -N,Se denotes 2-aminoethanethiolato (aet), 2-aminoethaneselenolato (aes), 2-aminoethanesulfenato (aese), 2-aminoethanesulfinato (aesi), 2-(methylthio)ethylamine (mea), and 2-(methyl-seleno)ethylamine (mseea). These complexes were characterized from their absorption, CD, and 1H NMR spectra. All complexes obtained were assigned to the Λ configuration. The (+)550CD mea isomer took selectively the Λ-(R) configuration in solution, while the (+)550CD mseea isomer a mixture of the Λ-(R) and Λ-(S) ones. The absorption and CD spectra of the complexes are discussed in comparison with those of the corresponding bis(ethylenediamine)cobalt(III) complexes. The Λ-(R)- and Λ-(S)-[Co(aese)(tn)2]2+ isomers showed the CD spectral change with time and it was suggested that the epimerization at sulfur was accompanied by the racemization of the skew pair of chelate rings.