Structure and Solution Study of Molecular Triorganotin Compounds Containing an N,C,N Ligand
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- 作者：Blanka Ka
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- 刊名：Organometallics
- 出版年：2006
- 出版时间：January 2, 2006
- 年：2006
- 卷：25
- 期：1
- 页码：148 - 153
- 全文大小：119K
- 年卷期：v.25,no.1(January 2, 2006)
- ISSN：1520-6041
文摘
The triorganotin compounds RB>2(NCN)SnX (NCN = C6H3(Me2NCH2)2-2,6-) containing different polargroups X or substituents R were prepared. The set of organotin compounds Ph2(NCN)SnX (X = I (2),CF3CO2 (3), CH3CO2 (4), Et2NCS2 (5)) was prepared to study the influence of the polar group X on thecharacter of the Sn-X bond. The effect of substituents R on the character of the Sn-X bond was studiedin two additional sets of organotin compounds, R2(NCN)SnCl (R = Ph (6), Bu (7), Me (8)) andR2(NCN)SnO2CCH3 (R = Ph (4), Bu (9), Me (10)). The influence of different solvents and temperatureson the presence or absence of covalent Sn-X bonds was studied as well. 1H and 119Sn NMR spectroscopyshowed the occurrence of dissociation of the Sn-O2CCH3 covalent bond in CD2Cl2 solutions of 4, 9,and 10 at various temperatures (range 300-200 K). The crystal structures of 8 and 10 were studied byX-ray crystallography.