The Triple Salt 2(C7H9N4O2)[MoOCl4(H2O)] . 2(C7H9N4O2)Cl . (H17O8)Cl Containing a C2-symmetrical Unbranched H+(H2O)8 Zundel type Species in a Framework Composed of Theophyllinium, Aquatetrachloridooxidomolybdate and Chloride Ions

被引：5
|
作者：
Wyshusek, Maik [1 ]
Reiss, Guido J. [1 ]
Frank, Walter [1 ]
机构：
[1] Heinrich Heine Univ Dusseldorf, Inst Anorgan Chem & Strukturchem, Univ Str 1, D-40225 Dusseldorf, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2021年 / 647卷 / 05期
关键词：
Theophylline; Molybdate; 3D Network; Hydrated proton species; Zundel ion; CRYSTAL-STRUCTURE; STRUCTURAL-CHARACTERIZATION; HYDROGEN-BOND; SPECTROSCOPIC FEATURES; ELECTRONIC-STRUCTURES; HYDROCHLORIC-ACID; PROTON; COMPLEX; CATION; SPECTRA;
D O I：
10.1002/zaac.202100007
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
From a concentrated hydrochloric acid solution of molybdenum-(V) chloride and theophylline octaaquahydrogen(1+) tetrakis(theophyllinium) bis[aquatetrachloridooxidomolybdate(1-)] tri-chloride, C7H9N4O2)(4)(H17O8)[MoOCl4(H2O)](2)Cl-3, (1) was obtained. The light emerald green inorganic-organic hybrid material can be rationalized as a triple salt according to the formula 2(C7H9N4O2)[MoOCl4(H2O)] . 2(C7H9N4O2)Cl . (H17O8)Cl. The ions involved are connected by charge-supported hydrogen bonds to form a 3D framework. The unique H17O8+ moiety features a chain of eight hydrogen bonded water molecules, with the excess proton defining a H5O2+ Zundel-ion (O...O distance 240.3(6) pm) in the middle of the chain, and is placed with crystallographic site symmetry 2. Although engaged in strong O-H...O bonding to the neighboring water molecules in the chain (O...O distance 262.9(4) pm) and in hydrogen bonding to a carbonyl group of a theophyllinium ion, both the conformation of the H5O2+ unit and the geometry of the very strong central O-H-O bond fit to the C-2-symmetrical global minimum structure of an isolated H5O2+ species. The outer water molecules of the H17O8+ moiety are further engaged in N-H...O, O-H...Cl and O-H...O=C bonds.
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页码：575 / 581
页数：7
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