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- Title
Preparative and Structural Studies on [Ni<sup>II</sup>(L)(N(CH<sub>2</sub>CH<sub>2</sub>S)<sub>2</sub>(CH<sub>2</sub>CH<sub>2</sub>SH))]<sup>0/1−1</sup> (L = PEt<sub>3</sub>, SePh): A Thiol in the Secondary Coordination Sphere.
- Authors
Chen, Chien-Hong; Yen, Shih-Ying; Huang, Tzu-Ting; Lee, Gene-Hsiang; Kuo, Ting-Shen; Lee, Chien-Ming
- Abstract
A Ni(II)-mixed-chalcogenolate carbonyl complex, [PPN][Ni(CO)(SePh)2(S- p-C6H4-Cl)] ( 1) was obtained from the treatment of [CpNi(μ-S- p-C6H4-Cl)]2 and fac-[PPN][Fe(CO)3(SePh)3]. Using 1 as a precursor, two four-coordinated square planar Ni(II)-chalcogenolate/chalcogenol complexes, [PPN][Ni-(SePh)(N(CH2CH2S)2(CH2CH2SH))] ( 2) and [Ni(PEt3)(N(CH2CH2S)2(CH2CH2SH))] ( 4) containing the thiol in the secondary coordination sphere have been synthesized and identified by single-crystal X-ray diffraction. Analyses of structural data and vibrational energy (νSH = 2431 cm−1 for 4) reveal that the pendant thiol in complexes 2 and 4, respectively do not form intramolecular interaction with the nickel and thiolato sulfur. Compared to previously reported analogues coordinated by [P( o-C6H4S)2( o-C6H4SH)]2−ligand (Chen, C.-H.; Lee, G.-H.; Liaw, W.-F. Inorg. Chem. 2006, 45, 2307), the lack of intramolecular interaction in complexes 2 and 4 may be attributed to the rotatable C-S and C-C bonds of [N(CH2CH2S)2(CH2CH2SH)]2− ligand, precluding the pendant thiol from pointing a direction to the nickel and thiolato sulfur.
- Subjects
CHEMICAL structure; THIOLS; COORDINATION compounds; CARBONYL compounds; MOLECULAR structure of enzymes; X-ray diffraction
- Publication
Journal of the Chinese Chemical Society, 2013, Vol 60, Issue 7, p762
- ISSN
0009-4536
- Publication type
Article
- DOI
10.1002/jccs.201200558