COPPER(I) AND COPPER(II) COMPLEXES OF POLYDENTATE PHOSPHINOAMINES

Bidentate (PN) and tetradentate {P2N2} ligands stabilize copper(I) and copper(II) inside tetrahedral (Cu-I) and square planar (Cu-II) coordi nation spheres, to give [Cu(PN)(2)](+,2+) and [Cu(P2N2)](+,2+) complex es, which were characterized by Various spectroscopies. The crystal st ructure of [Cu(H(2)dppd)]BF4. MeCN [2-(diphenylphosphino)phenyl]-propa ne-1,3-diamine) was determined: monoclinic, space group P2(1)/n, Z=4, a=11.483(4), b=13.516(6), c=24.224(9) Angstrom, beta=97.53(3)degrees, R=0.064 using 1897 observed reflections; Cu-P(1) 2.205(5), Cu-P(2) 2.2 13(4), Cu-N(1) 2.16(1), Cu-N(2) 2.14(1) Angstrom; P(1)-Cu-P(2) 125.1(2 )degrees, N(1)-Cu-N(2) 95.9(4)degrees, P(1)-Cu-N(1) 87.4(3)degrees, P( 2)-Cu-N(2) 87.8(3)degrees. (C) 1998 Elsevier Science S.A. All rights r eserved.