Synthesis, molecular and crystal structure of a tricarbonylchromium complex of 7-(2-phenyl- o-carboran-1-yl)cyclohepta-1,3,5-triene

The reaction of substituted 1-lithio- o-carboranes with tropylium tetrafluoroborate produces 7-( o-carboran-1-yl)cyclohepta-1,3,5-trienes, which can also be obtained by decomplexation of the corresponding tricarbonylchromium complexes prepared from 1-lithio- o-carboranes and [ ( C 7 H 7 ) Cr ( CO ) 3 ] + B F 4 −