학술논문
Synthesis and Characterization of a "Pt3 TI" Cluster Containing an Unprecedented Trigonal Environment for Thallium(I).
Document Type
Article
Author
Source
Subject
*PLATINUM compounds
*METAL clusters
*INORGANIC synthesis
*THALLIUM
*METAL ions
*THIOPHENES
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Language
ISSN
0020-1669
Abstract
The tetranuclear [{Pt(CNC)(tht)}3Tl]-(PF6) (tht = tetrahydrothiophene; SC4H8; CNC= C>N,C-2,6-NC5H3(C6H4-2)2; 2) cluster has been prepared by the reaction of [Pt(CNC)(tht)] (l) and T1PF6 (molar ratio 3:1) and structurally characterized. The Tl¹ atom is bonded to three PtII centers bearing a perfect trigonal coordination. The PtII--Tl¹ bonds are unsupported by any bridging ligand and are the shortest of this kind reported so far [2.9086(5) A], These intermetallic bonds persist in a CD2CI2 solution, as shown by the 195Pt{¹H}NMR spectrum of 2 at 193 K, in which a Pt--Tl coupling of 8.9 kHz is observed. [ABSTRACT FROM AUTHOR]