Patent ID: 6433112
Filing Date: 2002-08-13
Classification: C07F,C08F,Y10S

Abstract:
A &pgr; complex compound of transition metals of the formula in which&pgr; is a charged or electrically neutral &pgr; system which can be fused to one or two unsaturated or saturated five-membered or six-membered rings, and whose H atoms, in the fused or non-fused form, can be partially or completely replaced with identical or different radicals from the group consisting of unbranched or branched C1-C20-(cyclo)alkyl, C1-C20-halogeno(cyclo)alkyl, C2-C20-(cyclo)alkenyl, C1-C20-(cyclo)alkoxy, C7-C15-aralkyl and C6-C12-aryl, or replaced in one or two instances with D or A, D is a donor atom which, in the case of partial structure (Ia), is a substituent or part of the &pgr; system or is bonded to the &pgr; system via a spacer and, in the case of partial structure (Ib), is bonded to the transition metal, A is an acceptor atom which, in the case of partial structure (Ia), is bonded to the transition metal and, in the case of partial structure (Ib), is a substituent or part of the &pgr; system or is bonded to the &pgr; system via a spacer, the bonding of D or A to the transition metal taking place either directly or via a spacer, D and A being linked via a coordinate bond in such a way that the donor atom takes on a partial positive charge and the acceptor atom a partial negative charge, and it being possible for D and A in turn to carry substituents, M is a transition metal of subgroup III to VIII of the periodic table of the elements, including the lanthanides and actinides, X is one anion equivalent and n is the number zero, one, two, three or four, depending on the charges of M and &pgr;, D and A being specifically defined as follows: i) in formula (Ia): D is disubstituted N, P, As, Sb or Bi or monosubstituted O, S Se or Te, bonded to &pgr; via a spacer or directly, and A is B, Al, Ga or In, bonded to M via a spacer or directly; or ii) in formula (Ia), D and A together are one of the following groups bonded to &pgr; or M via a spacer or directly: which represent phosphonium salts, phosphorus ylides, aminophosphonium salts and phosphinimines, or the corresponding ammonium salts and nitrogen ylides, arsonium salts and arsenic ylides, sulfonium salts and sulfur ylides, selenium salts and selenium ylides, the corresponding aminoarsonium salts and arsinimines, aminosulfonium salts and sulfimines, aminoselenium salts and selenimines, â€ƒand the corresponding sulfimine structures; or iii) in formula (Ib): D is disubstituted N, P, As, Sb or Bi or monosubstituted O, S, Se or Te, bonded to M via a spacer or directly, and A is disubstituted Al, Ga or In, bonded to &pgr; via a spacer or directly, or disubstituted B, bonded to &pgr; via a spacer, R1, R2, R3 or R4 and the expression â€œsubstitutedâ€  independently of one another are C1-C20-(cyclo)alkyl, C1-C20-halogeno(cyclo)alkyl, C2-C20-(cyclo)alkenyl, C7-C15-aralkyl, C6-C12-aryl, C1-C20-(cyclo)alkoxy, C7-C15-aralkoxy, C6-C12-aryloxy, indenyl, halogen, 1-thienyl, disubstituted amino, trisubstituted silyl which can be bonded via â€”CH2â€”, or phenylacetylenyl, and â€œSpacerâ€  is a divalent silyl, germanyl, amino, phosphino, methylene, ethylene, propylene, disilylethylene or disiloxane group which can be monosubstituted to tetrasubstituted by C1-C4-alkyl, phenyl or C4-C6-cycloalkyl, and the element P, N, As, S or Se is bonded to &pgr; via the spacer or directly, a spacer being arranged between A and M in the case where D is part of the &pgr; system, and â€”C(R1)&boxH; also occurring as a spacer in cases i) and ii).