Reactions of M(II) and M(0) (M = Pd, Pt) complexes with organic tetrazole–thiones afford corresponding various mono or bis(tetrazole–thiolato) M(II) and unusual cyclometallated M(II) complexes via deprotonation or oxidative addition.
[Pt(TAG-κC,κN)(acac)] (TAG = triarylguanidinate(1−) ligands) were isolated and fully characterized. These complexes are bluish green light emitters and the origin of absorption/emission in selected complexes were studied by TD-DFT calculations.
Crystalline (amino)(carboxy)-based diradicals were synthesized from newly designed N,N′-trans-1,4-cyclohexylene bridged bis-CAACs. A half-field EPR signal unambiguously confirms their triplet diradical character.
Sigma donation and negative hyperconjugation interaction played significant roles in carbene → SO2 interactions. (lsCCC) → SO2 complexes were found to be relatively more stable.
A novel platinacycle exhibited a UV–vis absorption assignable to ligand–ligand charge transfer, and birefringence based on molecular alignment.