Abstract
AbstractThe complexes of 2-(menthoxycarbonyl)ethyltin chloride, MenOCOCH2CH2SnCl3⋅L (Men = Menthyl, L = benzyl phenyl sulfoxide (bpSO),1; 2,2’-bipyridine (bpy),2; 1,10-phenanthroline (phen),3) and [MenOCOCH2CH2SnCl2(OCH3)]2(4), have been synthesized and characterized by means of elemental analysis, FT-IR, NMR (1H,13C and119Sn) spectra. The crystal structures of1,3and4have been determined by single crystal X-ray diffraction. The tin atoms in1-4are all hexa-coordinated. The tin atom in1adopts a distorted [CSnCl3O2] octahedral geometry with an oxygen atom of the ligand and an intramolecular coordination of the oxygen atom from the carbonyl group to the tin atom. Complex3possesses a distorted [CSnCl3N2] octahedral geometry with two nitrogen atoms of a chelating phen ligand. The carbonyl oxygen atom of the ester moiety is not coordinating. Compound4is a centrosymmetric dimer with a four-membered Sn2O2ring, and the tin atom has a distorted [CSnCl2O3] octahedral geometry with an intramolecular C=O→Sn coordination and intermolecular methoxy bridging.
Highlights
Let A, A∗ denote a Lpoetoennatiradl LpeawirisoanciVd .cWhireacl acantadlyestet,ramnidntehwe rheeatchtieornAw,itAh∗ is self-dual in By [13, Lemma 1.3] eacthheeLiegwenissbpaasceehoafs Abe,eAn∗nhotaisnvdeismtiegantseido.nHoerneein. ,Lweet {reθpio}rdi=t denote an orThe Lewis RnSnCl(4-n) (n acid = 1-3)strengths decrease of as n tihnecretwvohaarhsegleuenasnen.tseoWhvtoeihenforeAnrAcd.hn∗elFroa=oircnir2tdgseoo{sr θn≤dt−tbpihhiyh}e≤eeditbs=nhdya,enosiltsrirehestpaea{yslcvsviti(soiipo}daynsdine=rtdinaodnofciinnhtdMeeaaae)rarnanidncOθi,trteCiahr-rOeneeizdCidmaguHteneic2onCtoihnbvHafelo2uneScfronttttholrCh.ierlde3cfirowoaomrgitrohpAdnle.ebarxTplienhSfsaOgefs,oiohrsbmriisdopetneyad,r.niIndfgathr{deθ.oiS}riddim=eirliiansrgA∗
In the IR of 2-(menthoxycarbonyl)ethyltin trichloride, the stretching vibration absorption of intramolecularly coordinated carbonyl is at 1645 cm-1
2-(Menthoxycarbonyl)ethyltin trichloride was prepared according to the reported method (Tian et al, 2005)
Summary
Let A, A∗ denote a Lpoetoennatiradl LpeawirisoanciVd .cWhireacl acantadlyestet,ramnidntehwe rheeatchtieornAw,itAh∗ is self-dual in By [13, Lemma 1.3] eacthheeLiegwenissbpaasceehoafs Abe,eAn∗nhotaisnvdeismtiegantseido.nHoerneein. ,Lweet {reθpio}rdi=t denote an or. Let A, A∗ denote a Lpoetoennatiradl LpeawirisoanciVd .cWhireacl acantadlyestet,ramnidntehwe rheeatchtieornAw,itAh∗ is self-dual in By [13, Lemma 1.3] eacthheeLiegwenissbpaasceehoafs Abe,eAn∗nhotaisnvdeismtiegantseido.nHoerneein. Strengths decrease of as n tihnecretwvohaarhsegleuenasnen.tseoWhvtoeihenforeAnrAcd.hn∗elFroa=oircnir2tdgseoo{sr θn≤dt−tbpihhiyh}e≤eeditbs=nhdya,enosiltsrirehestpaea{yslcvsviti(soiipo}daynsdine=rtdinaodnofciinnhtdMeeaaae)rarnanidncOθi,trteCiahr-rOeneeizdCidmaguHteneic2onCtoihnbvHafelo2uneScfronttttholrCh.ierlde3cfirowoaomrgitrohpAdnle.ebarxTplienhSfsaOgefs,oiohrsbmriisdopetneyad,r.niIndfgathr{deθ.oiS}riddim=eirliiansrg. Let {θi}di= denote a standard ordering of the eigenvalues of A. Lin et al.: Synthesis and structural characterization of the complexes bpSO. Scheme 1: Synthesis of the complexes 1 - 4. The expected complex MenOCOCH2CH2SnCl3⋅py was not obtained, and compound 4, a methoxide of 2-(menthoxycarbonyl)ethyltin trichloride, was generated (Scheme 1). The complexes are colorless crystalline, and can be dissolved in common organic solvents such as chloroform, methanol, and acetone
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