Metallaborane reaction chemistry .3. Reaction of carbon monoxide with [6-H-6-(PPh3)-6(P),5(C)-mu-(2-Ph2PC6H4)-nido-6-IrB9H12] and the isolation and characterisation of two arachno-6-monoiridadecaboranes [6-(CO)-6-H-6,9-(PPh3)(2)-6(P),5(C)-mu-(2-Ph2PC6H4)-arachno-6-IrB9H11] and sym-[6-(CO)-6-H-6,6-(PMe2Ph)(2)-9(PPh3)-arachno-6-IrB9H11]

被引:6
作者
Bould, J
Brint, P
Kennedy, JD
ThorntonPett, M
Barton, L
Rath, NP
机构
[1] UNIV LEEDS,SCH CHEM,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND
[2] UNIV COLL CORK,DEPT CHEM,CORK,IRELAND
[3] UNIV MISSOURI,DEPT CHEM,ST LOUIS,MO 63121
关键词
metallaborane; X-Ray studies; NMR; cluster; reaction chemistry of metallaboranes;
D O I
10.1135/cccc19971239
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
[6-(CO)-6-H-6,9-(PPh3)(2)-6(P),5(C)-mu-(2-Ph2PC6H4)-arachno-6-IrB9H11] (1) results from the reaction of [6-H-6-(PPh3)-6(P),5(C)-mu-(2-Ph2PC6H4)-nido-6-IrB9H12] (2) with carbon monoxide in refluxing benzene. It is characterised by NMR spectroscopy and by single-crystal X-ray diffraction analysis. Crystals were triclinic, space group <P(1)over bar>, with a = 10.688(2), b = 13.114(3), c = 22.356(5) Angstrom, alpha = 78.33(2), beta = 89.482(10), gamma = 70.884(12)degrees, and Z = 2. The compound is of the little-examined arachno ten-vertex metallaborane structural type. A second compound of this type, [6-(CO)-6-H-6,6-(PMe2Ph)(2)-9-(PPh3)-arachno-6-IrB9H11] (3), isolated from a reaction system involving [Ir(CO)Cl(PPh3)(2)], PMe2Ph and the [nido-B9H12](-) anion, has also been characterised crystallographically. Crystals were triclinic, space group <P(1)over bar>, with a = 10.389(1), b = 10.511(1), c = 19.699(3) Angstrom, alpha = 75.03(1), beta = 85.53(1), gamma = 74.88(1)degrees, and Z = 2.
引用
收藏
页码:1239 / 1253
页数:15
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