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Azobis[tetrazolide]‐Carbonates of the Lanthanides – Breaking the Gadolinium Break
Author(s) -
Müller Danny,
Knoll Christian,
Herrmann Andrea,
Savasci Gökcen,
Welch Jan M.,
Artner Werner,
Ofner Johannes,
Lendl Bernhard,
Giester Gerald,
Weinberger Peter,
Steinhauser Georg
Publication year - 2018
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.201800218
Subject(s) - lanthanide , chemistry , lanthanide contraction , gadolinium , ionic radius , yttrium , crystallography , rare earth element , metathesis , scandium , salt metathesis reaction , bond length , crystal structure , ionic bonding , raman spectroscopy , infrared spectroscopy , single crystal , inorganic chemistry , ion , rare earth , mineralogy , polymer , physics , organic chemistry , optics , polymerization , oxide
A series of rare earth element (REE) mixed‐anion 5,5′‐azobis(1 H ‐tetrazol‐1‐ide)‐carbonate ([REE 2 (ZT) 2 CO 3 (H 2 O) 10 ] · 2H 2 O; REE = lanthanides plus yttrium) coordination compounds were synthesized, characterized, and analyzed. Syntheses by simple metathesis reactions under a CO 2 atmosphere were carried out at ambient (La–Gd and Ho) and elevated pressures (55 bar; Tb, Dy, Er, Tm, Yb, and Y). The resulting crystalline materials were characterized principally by single‐crystal X‐ray diffraction and vibrational spectroscopy (infrared and Raman). All materials are structurally isotypic, crystallizing in the space group C 2/ c and show nearly identical spectroscopic properties for all the elements investigated. Cell parameters, bond lengths, and bond angles differ marginally, revealing only a slight variation coinciding with the lanthanide (Ln) contraction, that is, the change in the ionic radii of the trivalent rare earth elements. The herein reported series of rare earth element azobis[tetrazolide]‐carbonates represents a remarkable exception as they are a series of isotypic REE coordination compounds with tetrazolide‐derived ligands unaffected by the “gadolinium break”.