Nanobrook Omni测量应用案例-83

Several complexes of “PtL2” composition containing two cyanoxime anions – 2-oximino-2-cyano-N-piperidineacetamide (PiPCO−) and 2-oximino-2-cyano-N-morpholylacetamide (MCO−) – have been obtained and characterized both in solution and in the solid state. Complexes exist as two distinct polymorphs: monomeric yellow complexes and dark-green [PtL2]n 1D polymers, while for the MCO− anion a red, solvent containing dimeric [Pt(MCO)2·DMSO]2 complex has also been isolated. The interconversion of polymorphs was investigated. The monomeric PtL2 units are arranged into anisotropic extended solid [PtL2]n polymers with the help of Pt?Pt metallophilic interactions. Crystal structures of monomeric PtL2 (L = PiPCO−, MCO−) and red dimeric [Pt(MCO)2·DMSO]2 complexes were determined and revealed the cis-arrangement of cyanoxime anions. The Pt–Pt distance in the “head-to-tail” red dimer was found to be 3.133 Å.