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Intermolecular Se···I Interactions Identified in Cu 11 (μ 9 ‐Se)(μ 3 ‐I) 3 [Se 2 P(OEt) 2 ] 6 Form a One Dimensional Polymeric Chain
Author(s) -
Hunga ChiuMine,
Chu YiHua,
Santra Bidyut K.,
Liaw BenJie,
Wang JuChun,
Liu C. W.
Publication year - 2006
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200600108
Subject(s) - chemistry , selenium , crystallography , copper , trigonal prismatic molecular geometry , cluster (spacecraft) , intermolecular force , trigonal crystal system , atom (system on chip) , trigonal pyramidal molecular geometry , molar ratio , crystal structure , molecule , stereochemistry , octahedron , biochemistry , organic chemistry , computer science , programming language , embedded system , catalysis
The undecanuclear copper cluster Cu 11 (μ9‐Se)(μ 3 ‐I) 3 [Se 2 P(OEt) 2 ] 6 1 , has been isolated along with Cu 8 (μ 8 ‐Se)[Se 2 P(OEt) 2 ] 6 2 , from the reaction of NH 4 Se 2 P(OEt) 2 , Cu(CH 3 CN) 4 PF 6 , and Bu 4 NI in a molar ratio of 3:2:2 in diethyl ether. The molecular formulation of 1 was confirmed by elemental analysis, positive FAB mass spectrometry, multinuclear NMR ( 1 H, 31 P, and 77 Se), and X‐ray diffraction. In cluster 1 eleven copper atoms adopt the geometry of a 3,3,4,4,4‐pentacapped trigonal prism with a selenium atom in the center. The coordination geometry for the central, nonacoordinated selenium atom is tricapped trigonal prismatic. In addition, the central core Cu 11 Se is further stabilized by three iodides and six dsep ligands. Besides, weak inter‐molecular Se···I interactions (3.949–3.972 Å) are uncovered and form a one dimensional polymeric chain.