Nový kobalto- bis(dikarbolidový) ion substituovaný na atomu boru se vzorcem [(8,80-(RPhP(O)(CH2)n-C(O) N)<(1,2-C2B9H10)(2)-3,3'-Co] (R = Ph or C8H17, n = 1, 3a, 3b; R = Ph, n = 2, 3c), [(8-(Ph2P(O)CH2-C(O)NR)(1,2-C2B9H10))(1',2'-C2B9H11)-3,3'-Co] (R-1 = H, C2H5, CH2C6H5, 5a-c) and [(8-((RPhP)-R-2(O)CH2C(O)-N( R-1)CH2-1,2-C2B9H10))(8'-CH3O-1',2'-