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April 12, 2026

Synthesis and Crystal Structure of Mononuclear Zinc(II) Complexes with 6-Ferrocenyl-2,2′-Bipyridine

Key Points

The aim is to synthesize mononuclear zinc(II) complexes with 6-ferrocenyl-2,2'-bipyridine and determine their crystal structures.
Synthesize ZnL(NO3)2 and ZnLCl2·CH3CN complexes through reaction with zinc(II) salts.
Characterize structures using X-ray diffraction (XRD).
Analyze coordination environments based on anion type.
Complex 1 has a distorted trigonal prism coordination environment.
Complex 2 exhibits an intermediate geometry between tetrahedral and vacant trigonal bipyramidal.
Anion type significantly influences the coordination environment of the zinc complexes.

Abstract

Mononuclear complexes ZnL (NO3) 2 1 and ZnLCl2·CH3CN 2 are prepared for the first time by the interaction of 6-ferrocenyl-2, 2′-bipyridine (L) with zinc (II) salts. The structure of crystal phases is determined by XRD, and it is shown that the nature of the anion (NO₃^- or Cl–) is essential for determining the central atom′s coordination environment. In 1 (space group P21/c), the 5+1 coordination environment is described as a distorted trigonal prism. In 2 (space group P1), the geometry is intermediate between tetrahedral and vacant trigonal bipyramidal.

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Synthesis and Crystal Structure of Mononuclear Zinc(II) Complexes with 6-Ferrocenyl-2,2′-Bipyridine

Key Points

Abstract

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