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Titolo: SYNTHESIS AND CRYSTAL-STRUCTURES OF [SN(2-[(ME3SI)(2)C]C5H4N)R] [R = C6H2PR3I,4,6 1 OR CH(PPH2)(2) 2], 2 NOVEL HETEROLEPTIC TIN(II) COMPOUNDS DERIVED FROM [SN-(2-[(ME3SI)(2)C]C5H4N)CL], AND FOR [(SN(C6H2PR3I-2,4,6)(2))(3)] 3, A STRUCTURAL REDETERMINATION
Autore: CARDIN CJ; CARDIN DJ; CONSTANTINE SP; DREW MGB; RASHID H; CONVERY MA; FENSKE D;
- Indirizzi:
- UNIV READING,DEPT CHEM,POB 224 READING RG6 2AD BERKS ENGLAND UNIV READING,DEPT CHEM READING RG6 2AD BERKS ENGLAND UNIV DUBLIN TRINITY COLL,DEPT CHEM DUBLIN 2 IRELAND UNIV KARLSRUHE,DEPT ANORGAN CHEM D-76128 KARLSRUHE GERMANY
- Titolo Testata:
- Journal of the Chemical Society. Dalton transactions
fascicolo: 16,
,
anno: 1998,
pagine: 2749 - 2756
- SICI:
- 0300-9246(1998):16<2749:SACO[[>2.0.ZU;2-A
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- X-RAY STRUCTURE; MOLECULAR-ORBITAL CALCULATIONS; PHASE ELECTRON-DIFFRACTION; NUCLEAR MAGNETIC-RESONANCE; MONOMERIC TIN(II); LEAD(II) COMPLEXES; TIN CLUSTERS; METAL ALKYLS; SOLID-STATE; SN;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Science Citation Index Expanded
- Citazioni:
- 40
- Recensione:
- Indirizzi per estratti:
-
-
-
- Citazione:
- C.J. Cardin et al., "SYNTHESIS AND CRYSTAL-STRUCTURES OF [SN(2-[(ME3SI)(2)C]C5H4N)R] [R = C6H2PR3I,4,6 1 OR CH(PPH2)(2) 2], 2 NOVEL HETEROLEPTIC TIN(II) COMPOUNDS DERIVED FROM [SN-(2-[(ME3SI)(2)C]C5H4N)CL], AND FOR [(SN(C6H2PR3I-2,4,6)(2))(3)] 3, A STRUCTURAL REDETERMINATION", Journal of the Chemical Society. Dalton transactions, (16), 1998, pp. 2749-2756
Abstract
Two novel, monomeric heteroleptic tin(II) derivatives, [Sn{2-[(Me3Si)(2)C]C5H4N}R] [R = C6H2Pr3i,-2,4,6 1 or CH(PPh2)(2) 2], have been prepared, characterised by multinuclear NMR spectroscopies and their molecular structures determined by single crystal X-ray diffraction. Both compounds were prepared from the corresponding heteroleptic tin(II) chloro-analogue, [Sn{2-[(Me3Si)(2)C]C5H4N}Cl], and thus demonstrate the utility of this compound as a precursor to further examples of heteroleptic tin(II) derivatives: such compounds are often unstable with respect to ligand redistribution. In each case, the central tin(II) is three-co-ordinate, Crystals of trimeric [{Sn(C6H2Pr3i-2,4,6)(2)}(3)] 3 were found to undergo a solid state phase transition, which may be ascribed to ordering of the ligand isopropyl groups. At 220 K the unit cell is orthorhombic, space group Pna2(1), compared with monoclinic, space group P2(1)/c, for the same crystals at 298 K, in which there is an effective tripling of the now b (originally c) axis. This result illustrates the extreme crowding generated by this bulky aryl ligand.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 02:31:55