名称:
Preparation of trans-RuH(η1-BH4)L (L = Me6[15]aneS4, Me8[16]aneS4) and oxidation in alcohols to give trans-{Ru(OR)2(anti-Me8[16]aneS4)}+ R = Me, Et). Crystal structures of the hydrido and ethoxo complexes of Me8[16]aneS4
摘要:
Reaction of cis-RuCl(2)L (L=Me(8)[16]aneS(4), Me(6)[15]aneS(4)) with an excess of NaBH4 in EtOH gave trans-RuH(eta(1)-BH4)L (L = Me(8)[16]aneS(4) (1); Me(6)[15]aneS(4) (2)). The monodentate coordination of the BH4- ligand in 1 was confirmed by a single crystal X-ray diffraction study. It crystallizes in monoclinic space group P2(1)/c, with Z = 4, a = 13.720(5), b = 17.975(6), c = 13.033(3) Angstrom, beta = 113.86(3)degrees, R (R(W)) = 0.070 (0.070) for 2258 reflections (\F-o\greater than or equal to 4 sigma(F-o)) and 272 parameters. Reaction of 1 with O-2 and subsequent treatment with alcohols produced trans-{Ru(OR)(2)(anti-Me(8)[16]aneS(4))}(+) (R = Me (3), Et (4)). The diethoxo complex was fully characterized by X-ray crystallography: monoclinic, space group C2/c, c = 16.627(5), b = 11.917(4), c = 18.418(9) Angstrom, beta = 102.80(3)degrees, Z = 4, R (R(W)) = 0.036 (0.040) for 3491 reflections (\F-o\greater than or equal to 3 sigma(F-o)) and 312 parameters.