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

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. Unit cell of bis(naphthaldiminato)nickel( ii ) complexes bearing chiral groups at imino N atoms showing 16 independent units ( Z ′) with a sizeable bending of the chelating ligands.