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Triammine fac and mer Coordination for Ruthenium–Nitrosyl Complexes: Synthesis and Characterization of [RuNO(NH 3 ) 3 Cl 2 ]Cl
Author(s) -
Vorobyev Vasily,
Emelyanov Vyacheslav A.,
Plusnina Olga A.,
Makarov Edgar M.,
Baidina Iraida A.,
Smolentsev Anton I.,
Tkachev Sergey V.,
Asanova Tatyana I.
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201601233
Subject(s) - chemistry , ruthenium , spectroscopy , ammonia , hydrochloric acid , extended x ray absorption fine structure , inorganic chemistry , nuclear magnetic resonance spectroscopy , coordination complex , thermogravimetric analysis , crystallography , absorption spectroscopy , stereochemistry , catalysis , organic chemistry , metal , physics , quantum mechanics
New high‐yielding methods for two [RuNO(NH 3 ) 3 Cl 2 ]Cl complexes are suggested. First, the ammine ligands are arranged facially through the reaction of a concentrated ammonia solution with the ruthenium–hexanitro complex. In the next step, the treatment of the previously unknown fac ‐Na[Ru(NO 2 ) 3 (NH 3 ) 3 ] · 3H 2 O with hydrochloric acid leads to the nitrosyl complex. The mer ‐[RuNO(NH 3 ) 3 Cl 2 ]Cl · H 2 O complex is formed from the corresponding aqua complex under reflux in 6 m HCl. The complexes were studied by various methods [FTIR spectroscopy, 14 N NMR spectroscopy, extended X‐ray absorption fine structure (EXAFS), thermogravimetric analysis (TGA), and X‐ray diffraction studies]. Metastable states (Ru–O–N) were observed in mer ‐[RuNO(NH 3 ) 3 Cl(H 2 O)]Cl 2 , mer ‐[RuNO(NH 3 ) 3 Cl 2 ]Cl · H 2 O, and fac ‐[RuNO(NH 3 ) 3 Cl 2 ]Cl under illumination at λ = 443 nm at liquid‐nitrogen temperatures.