The mixture of two isomers of the new complex Os(H)(CO)(quS)(PPh3)23 reacts with HBF4·Et2O at â80 °C to form the complexes [Os(η2-H2)(CO)(quS)(PPh3)2]+, with dihydrogen trans to sulfur 4a or nitrogen 4b along with tautomeric thiol complexes [Os(H)(CO)(quSH)(PPh3)2]+4c,d; the tautomeric equilibria shift with temperature.
新络合物Os(H)(CO)(quS)(PPh3)23的两种异构体混合物与
HBF4Â-Et2O在±80 °C时发生反应,生成络合物[Os(δ-2-H2)(CO)(quS)(PPh3)2]+,其中二氢反式为
硫4a或氮4b,以及同分异构
硫醇络合物[Os(H)(CO)(quSH)(PPh3)2]+4c,d;同分异构平衡随温度的变化而变化。