Agostic Pd ⋯ H+⋯ NHR2 and apical Pd ⋯ NHR2 interactions: the synthesis and structures of [PdIICl2(H[9]aneN3)]+, the PdII–PdII dimer [(H[9]aneN3)Cl2Pd–PdCl2(H[9]aneN3)]2+, and [Pd(Me3[9]aneN3)(NCMe)2]2+
Abstract
Long-range agostic Pd ⋯ H+⋯ NHR2 interactions are observed in the crystal structure of the protonated form of cis-[PdIICl2([9]aneN3)], while a direct apical Pd ⋯ NHR2 interaction is observed in the purple complex [Pd(Me3[9]aneN3)(NCMe)2](PF6)2.