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  • Crystal structure of (1,4,7,10,13,16-hexaoxacyclooctadecane-κ 6 O )potassium-μ-oxalato-triphenylstannate(IV), the first reported 18-crown-6-stabilized potassium salt of triphenyloxalatostannate

This content will become publicly available on September 1, 2025

Title: Crystal structure of (1,4,7,10,13,16-hexaoxacyclooctadecane-κ 6 O )potassium-μ-oxalato-triphenylstannate(IV), the first reported 18-crown-6-stabilized potassium salt of triphenyloxalatostannate
The title complex, (1,4,7,10,13,16-hexaoxacyclooctadecane-1κ6O)(μ-oxalato-1κ2O1,O2:2κ2O1′,O2′)triphenyl-2κ3C-potassium(I)tin(IV), [KSn(C6H5)3(C2O4)(C12H24O6)] or K[18-Crown-6][(C6H5)3SnO4C2], was synthesized. The complex consists of a potassium cation coordinated to the six oxygen atoms of a crown ether molecule and the two oxygen atoms of the oxalatotriphenylstannate anion. It crystallizes in the monoclinic crystal system within the space groupP21. The tin atom is coordinated by one chelating oxalate ligand and three phenyl groups, forming acis-trigonal–bipyramidal geometry around the tin atom. The cations and anions form ion pairs, linked through carbonyl coordination to the potassium atoms. The crystal structure features C—H...O hydrogen bonds between the oxygen atoms of the oxalate group and the hydrogen atoms of the phenyl groups, resulting in an infinite chain structure extending alonga-axis direction. The primary inter-chain interactions are van der Waals forces.  more » « less
Award ID(s):
2117621
PAR ID:
10546460
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
The International Union of Crystallography (IUCr)
Date Published:
Journal Name:
Acta Crystallographica Section E Crystallographic Communications
Volume:
80
Issue:
9
ISSN:
2056-9890
Page Range / eLocation ID:
951 to 955
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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