Crystal structure of trans-[1,3-bis(9-benzyl-9H-fluoren-9-yl) benzimidazol-2-ylidene] pyridine palladium(II) dichloride, C52H39Cl2N3Pd

Abstract

C 52 H 39 Cl 2 N 3 Pd, tetragonal, I4

Stereochemical Control of Tricoordinate Copper(I) Complexes Based on N-(9-Alkyl-9-fluorenyl)-Substituted Heterocyclic Carbenes

“…14 Monodentate carbene ligands of this type typically delineate a sterically embracing environment created either by C-H bonds of the 9-alkyl side chain(s) (these resulting in anagostic interactions with certain metals) or by the fluorenylidene plane(s), which, when oriented towards the metal atom, can operate as a protective shield. [15][16][17][18][19][20] In this study, we describe a series of remarkably stable tricoordinate cationic copper(I) complexes of general formula [Cu(NHC)(dpa)][BF 4 ] 1a-f (dpa = 2,2′-dipyridylamine) (Figure 1). Their synthesis was undertaken with the aim of obtaining air-stable NHC-Cu(I) complexes.…”