PREPARATION OF COMPLEXES FORMED IN THE REACTION BETWEEN DICOBALTOCTACARBONYL AND TETRAALKYLDIPHOSPHINE DISULFIDES, R_2P(S)P(S)R_2 (R=Me, Et, n-Pr, n-Bu)

摘要

Co_2(CO)_8 and R_2P(S)P(S)R_2 (R= Me, Et, n-Pr, n-Bu) react to form the three types of cluster complexes (Co_2(#mu#-CO)(#mu#_4-S)(CO)_4)_2, (1), (Co_4(CO)_9(#mu#_3-S)(#mu#-PR_2)_2) (2A)-(2D), ((2A), R=Me; (2B), R= Et, (2C), R=n-Pr; (2D), R= n-Bu) and (Co_3(CO)_7)(mu_3-S)(SPR_2)) (3A)-(3D), ((3A), R = Me; (3B), R = Et; (3C), R = n-Pr; (3D), R = n-Bu). The structure of (2A) and the disubstituted triphenylphosphine derivative of (3A) were reported previously. The complexes have been characterized by elemental analyses, FT-IR and ~(31)P-(~1H) NMR spectroscopy and mass spectrometry.