1. NEW COPPER(I) AND COPPER(II) TETRAORGANODICHALCOGENOIMIDODIPHOSPHINATES. CRYSTAL AND MOLECULAR STRUCTURE OF THE FIRST MONOTHIOIMIDODIPHOSPHINATO COPPER(I) COMPLEX, CU4[(OPME2)(SPPH2)N]4∙6CH2CL2. Authors: ADINA ROTAR, OVIDIU MOLDOVAN, S.I. FARCAS, RICHARD A. VARGA, CRISTIAN SILVESTRU, ANCA SILVESTRU.2. METHYLTIN(IV) TRICHLORIDE COMPLEXES OF β-KETIMINE, MeSnCl3[OC(Me)CHC(Me)NH(C6H3iPr2-2’,6’)-4]n (n = 1,2). SOLUTION BEHAVIOR AND SOLID STATE STRUCTURE. Authors: CRISTIAN SILVESTRU, RICHARD A. VARGA, CARMEN COMSA.3. SOLID STATE STRUCTURE OF A NEW NICKEL(II) (3H-2-THIOXO-1,3,4-THIADIAZOL-2-YL) THIOACETATO COMPLEX. Authors: LELIA CIONTEA, TRAIAN PETRIŞOR JR., VIOREL SASCA, RICHARD A. VARGA, VASILE N. BERCEAN, MONICA M. VENTER.4. AMMONIUM SALTS OF ORGANOPHOSPHORUS ACIDS. CRYSTAL AND MOLECULAR STRUCTURE OF [Et3NH]+[(SPMe2)(SPPh2)N]- AND [2-{O(CH2CH2)2N(H)CH2}C6H4. Authors: ANCA SILVESTRU, DRAGOS MARGINEANU, RICHARD A. VARGA, MONICA KULCSAR, ANA MARIA PREDA.