Complexes of osmium, ruthenium, rhenium, and iridium halides with some tertiary monophosphines and monoarsines

Abstract
The preparation and some physical properties of complexes of the types [MX3L3] where M = Re, Ru, or Os and [MX4L2] where M = Re, Os, or Ir and L = tertiary monophosphines are described. A few tertiary monoarsine analogues are also included.