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[Nd 6 (μ 6 ‐O)(μ 3 ‐OH) 8 (H 2 O) 24 ]I 8 (H 2 O) 12 ‐ the First Basic Rare Earth Iodide with an Oxygen‐centred M 6 X 8 ‐Cluster Core
Author(s) -
Mudring AnjaVerena,
Babai Arash
Publication year - 2005
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.200400377
Subject(s) - iodide , orthorhombic crystal system , chemistry , iodine , neodymium , crystallography , crystal (programming language) , cationic polymerization , crystal structure , molecule , oxygen , inorganic chemistry , laser , polymer chemistry , organic chemistry , physics , programming language , computer science , optics
Nearly colorless, plate‐like crystals of the basic neodymium iodide, [Nd(μ 6 ‐O)(μ 3 ‐OH) 8 (H 2 O) 24 ]I 8 (H 2 O) 12 were obtained by hydrolysis of neodymium(III) iodide, NdI 3 · x H 2 O, at pH = 7 in water. The crystal structure (Pearson code P156, orthorhombic, Pnnm (No. 58), Z = 2, a = 1310.4(3), b = 1502.1(3), c = 1514.9(3) pm, 2738 reflections with I o > 2σ(I o ), R 1 = 0.0357, wR 2 = 0.0878, GooF = 1.043, T = 298(2) K) is characterized by oxygen centred {M 6 X 8 } 8+ clusters (M = Nd 3+ , X = OH ‐ ). These cationic clusters are arranged in a body‐centred fashion. Charge balance is achieved by eight iodine anions, the remaining empty space is filled by twelve crystal water molecules per formula unit.