Conformation-directing chiral groups in bis(naphthaldiminato)nickel(ii) complexes: a rare example with 16 crystallographically independent units (Z′)

Abstract

Conformational distortions in bis-chelating nickel(II) complexes with naphtholate Schiff base ligands bearing an alkyl chiral group at the imino nitrogen atoms are described. The single crystal X-ray analysis at 100 K by using synchrotron radiation of bis[1-((((R)-1,2,2-trimethylpropyl)imino)methyl)-2-naphtholato]nickel(II) shows an umbrella shape of sizeable bending. In addition, the unit cell of this complex contains 16 crystallographically independent units, a rare example of high Z′ value.