Syntheses and structural characterizations of ferra- and cobaltacarborane complexes derived from the arachno-6-R-5,6,7-C3B7H12 [R-=NCCH2-, MeOC(O)CH2-, MeC(O)CH2-] tricarbaborane

被引：30

作者：

Barnum, BA ^{[1
]}

Carroll, PJ ^{[1
]}

Sneddon, LG ^{[1
]}

机构：

[1] UNIV PENN,DEPT CHEM,PHILADELPHIA,PA 19104

来源：

INORGANIC CHEMISTRY | 1997年 / 36卷 / 07期

关键词：

D O I：

10.1021/ic961253p

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of ferratricarbaboranyl complexes, closo-1-(eta-C5H5)FeRC(3)B(7)H(9) [R- = H-, NCCH2-, MeOC(O)CH2-], have been generated by the reactions of (eta-C5H5)Fe(CO)(2)I with tricarbaboranyl arachno-6-R-5,6,7-C3B7H11- anions. Structural characterizations of closo-1-(eta-C5H5)Fe-2-(NCCH2)-2,3,4-C3B7H9, 1c, closo-1-(eta-C5H5)Fe-3-(NCCH2)-2,3,4-C3B7H9, 1d, closo-1-(eta-C5H5)Fe-2-(MeCH(3)OC(O)CH2)-2,3,4-C3B7H9, 2b, and closo-1-(eta-C5H5)-Fe-3-(MeOC(O)CH2)-2,3,4-C3B7H9, 2c, show the ferratricarbaboranyl cages in these complexes have closo-octadecahedral structures containing carbon atoms in the two four-coordinate positions closest to the iron. Other isolated products arise from further reactions of the side chain groups, with crystallographically characterized products including the multicage complex (mu(2,12')-CH2)[closo-1-(eta-C5H5)Fe-2,3,4-C3B7H9][arachno-5'-(NCCH2)-5',7',9',12',11'-C4NB7H10], 1e, and the first polyboron metallapentacarboborane nido-2-(eta-C5H5)Fe-7-Me-7,8,9,10,12-C5B6H10, 3c. Cobaltatricarbaboranes of general formula 1-(eta-C5H5)Co(NCCH2)C3B7H9, 4b-d, along with the unique multimetal cluster commo-Co-[closo-1-Co-8,9-((eta-C5H5)Co)(2)-2-3,5-C3B7H10][closo-2'-Co-3'-(NCCH2-CH2)-1',10'-C2B7H8], 4e, were isolated from the reaction of cobalt chloride with a mixture of the arachno-6-NCCH2-5,6,7-C3B7H11- and cyclopentadienyl anions.

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页码：1327 / 1337

页数：11

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