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On the Nature of Crystals Precipitating from Aqueous Silver Ethylenediamine Oxalate Complex Solutions
Author(s) -
Kunz Christoph,
Walsdorff Christian,
Viertelhaus Martin,
Adam Christian,
Karpov Andrey,
Nuss Jürgen,
Jansen Martin
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202100079
Subject(s) - ethylenediamine , oxalate , aqueous solution , molecule , chemistry , crystallography , crystal structure , diamine , transition metal dioxygen complex , inorganic chemistry , coordination number , oxygen , polymer chemistry , organic chemistry , ion
Aqueous silver ethylene diamine oxalate complex solution is a critical precursor in the production of supported silver catalysts. Crystals precipitating from such complex solutions are characterized by single‐crystal structure analysis as [Ag(μ‐ en )] 2 (C 2 O 4 )×2H 2 O. Silver atoms are bridged by ethylenediamine molecules in a molar ratio of 1 : 1 forming slightly distorted one‐dimensional polymeric Ag(μ ‐en )‐chains along the c axis. Oxygen atoms of oxalate groups show no direct coordination to silver atoms. Oxygen atoms of lattice water molecules show a weak lateral coordination to silver atoms within slightly bent N−Ag−N fragments.
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