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Crystal Structure, Solid‐State NMR Spectroscopic and Photoluminescence Studies of Organic‐Inorganic Hybrid Materials (HL) 6 [Ge 6 (OH) 6 (hedp) 6 ]·2(L)· H 2 O, L = hqn or phen (Eur. J. Inorg. Chem. 23/2006)
Author(s) -
Mafra Luís,
Almeida Paz Filipe E.,
Shi FaNian,
Sá Ferreira Rute A.,
Carlos Luís D.,
Trindade Tito,
Fernandez Christian,
Klinowski Jacek,
Rocha João
Publication year - 2006
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.200690047
Subject(s) - chemistry , crystallography , supramolecular chemistry , protonation , photoluminescence , molecule , crystal structure , stereochemistry , ion , organic chemistry , physics , optics
The cover picture shows the three‐dimensional supramolecular arrangement of 1,10‐phenanthroline (phen) residues in compound (Hphen) 6 [Ge 6 (OH) 6 (hedp) 6 ]·2(phen)·20H 2 O (where H 4 hedp stands for etidronic acid). Protonated organic residues, Hphen + , π‐π‐stack along the [101] direction of the unit cell, which leads to the formation of columns that are interconnected through a series of weak C–H···π interactions with neighbouring 1,10‐phenanthrolines. The resulting organic framework is highly porous and contains charge‐balancing centrosymmetric hexameric anionic [Ge 6 (ν 2 ‐OH) 6 (C 2 H 4 O 7 P 2 ) 6 ] 6– moieties within the channels and a large number of highly disordered water molecules (total available volume of ca. 2462 Å 3 per unit cell). Details are discussed in the article by J. Rocha et al. on p. 4741 ff.