Studies of tetrakis(trifluoroacetate) dirhodium -: Part 4.: Solventless synthesis of Rh2(O2CCF3)2(CO)4 combined with Rh2(O2CCF3)4, a compound with infinite chains of rhodium atoms

被引:43
作者
Cotton, FA [1 ]
Dikarev, EV [1 ]
Petrukhina, MA [1 ]
机构
[1] Texas A&M Univ, Dept Chem, Mol Struct & Bonding Lab, College Stn, TX 77842 USA
基金
美国国家科学基金会;
关键词
rhodium; trifluoroacetate; carbonyl; crystal structure;
D O I
10.1016/S0022-328X(99)00609-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
By reaction of Rh-2(O2CCF3)(4) and Mo(CO)(6) in an evacuated sealed tube placed in a thermal environment where there is a thermal gradient (125-120 degrees C), we have obtained a compound in which one Rh-2(O2CCF3)(4) unit is sandwiched between two Rh-2(O2CCF3)(2)(CO)(4) units, to give an essentially linear array of six rhodium atoms, with Rh-Rh distances of 2.960(1), 2.790(1) and 2.412(1) Angstrom. These arrays of six rhodium atoms are then linked into infinite chains which lie parallel in the crystal, with Rh to Rh contacts of 3.062(1) Angstrom. The crystals are markedly dichroic and relatively air stable. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:130 / 135
页数:6
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