THE CHARACTER OF INTERACTION OF ORGANOMETALLIC DERIVATIVES OF 4-NITROPHENOL AND 4-NITROTHIOPHENOL WITH ANIONS IN DIFFERENT MEDIA

Interaction of R(n)M-derivatives of 4-nitrophenol and thiophenol (R(n) M = PhHg, PPh(3)Au, Ph(3)Sn, Ph(4)Sb) with a set of inorganic and orga nic anions (Cl-, Br-, I-, CN-, [PhOCO](-), [4-NO2C6H4OCO](-)) was stud ied by IR and electronic spectroscopy in solvents with different polar ities and coordinating properties (C6H6, CH2Cl2. DMSO). The dependence of the character of the interaction with the anions on the nature of the metal atom and heteroatom, the type of anions and the nature of th e media was analyzed. Such interaction leads to ion-molecular complexe s, and also to dissociation of the X-M bond (X = O, S, M = Au, Hg, Sb) with formation of the (4-NO(2)C(6)H(4)X)(-) anion even in weakly pola r media. Only in the case of 4-NO(2)C(6)H(4)OSnPh(3) does the reaction stop at the stage of complex formation. In other cases the role of co mplex formation with anions is less than with neutral coordinating rea gents.