In:
Zeitschrift für anorganische und allgemeine Chemie, Wiley, Vol. 639, No. 12-13 ( 2013-10), p. 2276-2281
Abstract:
Slow diffusion reactions of Ln 3+ (Ln = Ce, Eu, Tb) ions, pyrazine, and the [W(CN) 8 ] 3– unit at 0 °C produced three discrete coordination compounds [Ln(H 2 O) 5 (CH 3 CN) 2 ][W(CN) 8 ] · 0.5pyrazine · CH 3 CN · 2H 2 O [Ln = Ce ( 1 ), Eu ( 2 )] and [Tb(H 2 O) 6 (CH 3 CN) 2 ][W(CN) 8 ] · pyrazine · 2CH 3 CN · 3H 2 O ( 3 ). Single crystal X‐ray diffraction analysis revealed that compounds 1 and 2 are isomorphous and adopt a rare centrosymmetric tetranuclear square unit, while compound 3 exhibits an ion‐pair moiety, in which unique tetramer water clusters (H 2 O) 4 are involved. The presence of different types of hydrogen‐bonding interactions is responsible for the formation of three‐dimensional supramolecular networks. The isolations of compounds 1 – 3 provide a further insight into the effect of temperatures on constructions and structures of the lanthanide(III)‐pyrazine‐octacyanotungstate(V) system.
Type of Medium:
Online Resource
ISSN:
0044-2313
,
1521-3749
DOI:
10.1002/zaac.v639.12/13
DOI:
10.1002/zaac.201300070
Language:
German
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
201094-X
detail.hit.zdb_id:
1481139-X
Permalink