TY - JOUR
T1 - Crystal structures of three zinc(II) halide coordination complexes with quinoline N-oxide
AU - Padgett, Clifford W.
AU - Lynch, Will E.
AU - Groneck, Erin N.
AU - Raymundo, Melina
AU - Adams, Desiree
N1 - Publisher Copyright:
© 2022 Published under a CC BY 4.0 licence.
PY - 2022/7/1
Y1 - 2022/7/1
N2 - The reaction of one equivalent of zinc(II) halide with two equivalents of quinoline N-oxide (QNO) in methanol yields compounds as ZnX 2(QNO)2, where X = Cl (I), Br (II) and I (III), namely, dichloridobis(quinoline N-oxide-κO)zinc(II), [ZnCl2(C9H7NO)2], dibromidobis(quinoline N-oxide-κO)zinc(II), [ZnBr2(C9H7NO)2], and diiodidobis(quinoline N-oxide-κO)zinc(II) [ZnI2(C9H7NO)2]. In all three complexes, Zn cations are coordinated by two QNO ligands bound through the oxygen atoms and two halide atoms, with X-Zn-X bond angles ca 20° wider than the O-Zn-O, giving rise to a distorted tetrahedral geometry. Crystals of (II) and (III) are isostructural and both show pairwise π-stacking of QNO ligands and weak C-H⋯X hydrogen bonds, while (I) packs differently, with a shorter C-H⋯Cl bond and without π-stacking.
AB - The reaction of one equivalent of zinc(II) halide with two equivalents of quinoline N-oxide (QNO) in methanol yields compounds as ZnX 2(QNO)2, where X = Cl (I), Br (II) and I (III), namely, dichloridobis(quinoline N-oxide-κO)zinc(II), [ZnCl2(C9H7NO)2], dibromidobis(quinoline N-oxide-κO)zinc(II), [ZnBr2(C9H7NO)2], and diiodidobis(quinoline N-oxide-κO)zinc(II) [ZnI2(C9H7NO)2]. In all three complexes, Zn cations are coordinated by two QNO ligands bound through the oxygen atoms and two halide atoms, with X-Zn-X bond angles ca 20° wider than the O-Zn-O, giving rise to a distorted tetrahedral geometry. Crystals of (II) and (III) are isostructural and both show pairwise π-stacking of QNO ligands and weak C-H⋯X hydrogen bonds, while (I) packs differently, with a shorter C-H⋯Cl bond and without π-stacking.
KW - Crystal structure
KW - Hirshfeld surface analysis
KW - Quinoline N-oxide
KW - Zinc(II) coordination complex
UR - http://www.scopus.com/inward/record.url?scp=85133967200&partnerID=8YFLogxK
U2 - 10.1107/S2056989022005953
DO - 10.1107/S2056989022005953
M3 - Article
AN - SCOPUS:85133967200
SN - 2056-9890
VL - 78
SP - 716
EP - 721
JO - Acta Crystallographica Section E: Crystallographic Communications
JF - Acta Crystallographica Section E: Crystallographic Communications
ER -