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Title: Synthesis and the crystal and molecular structure of two modifications of bis(1,10-phenanthroline)trinitratoerbium(III) Er(NO{sub 3}){sub 3}(Phen){sub 2}

Abstract

Two crystalline modifications (I and II) of the phenanthroline complex of erbium nitrate with the same chemical composition, Er(NO{sub 3}){sub 3}(Phen){sub 2}, are synthesized by a procedure similar to that used for preparing the phenanthroline complexes of europium nitrate. The crystal structures of these modifications are determined using X-ray diffraction. Crystals of compound I belong to the isostructural family Ln(NO{sub 3}){sub 3}(Phen){sub 2} (Ln = La-Lu). Crystals of compound II are isostructural to those of modification II (new phase) of the Eu(NO{sub 3}){sub 3}(Phen){sub 2} compound. Crystals of I and II are monoclinic, space group C2/c, and Z = 4. The unit cell parameters are as follows: a = 11.126 A, b = 17.815 A, c = 12.976 A, {beta} = 100.45{sup o}, and V = 2529 A{sup 3} for modification I and a = 9.459 A, b = 15.463 A, c = 17.076 A, {beta} = 93.52 deg., and V = 2493 A{sup 3} for modification II. The molecular complexes in the structures of compounds I and II are nearly identical. The mean lengths of the Er-N and Er-O bonds are equal to 2.500 and 2.466 A in compound I and 2.508 and 2.457 A in compound II, respectively.more » The difference between the structures of compounds I and II is associated with the difference between intermolecular interactions in the unit cell.« less

Authors:
; ; ;  [1]
  1. Russian Academy of Sciences, Kurnakov Institute of General and Inorganic Chemistry (Russian Federation)
Publication Date:
OSTI Identifier:
21091496
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 51; Journal Issue: 2; Other Information: DOI: 10.1134/S1063774506020131; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHEMICAL COMPOSITION; CRYSTALS; ERBIUM NITRATES; EUROPIUM COMPLEXES; EUROPIUM NITRATES; MOLECULAR STRUCTURE; MONOCLINIC LATTICES; PHENANTHROLINES; SPACE GROUPS; SYNTHESIS; X-RAY DIFFRACTION

Citation Formats

Sadikov, G. G., E-mail: sadgg@igic.ras.ru, Antsyshkina, A. S., Kuznetsova, I. A., and Rodnikova, M. N. Synthesis and the crystal and molecular structure of two modifications of bis(1,10-phenanthroline)trinitratoerbium(III) Er(NO{sub 3}){sub 3}(Phen){sub 2}. United States: N. p., 2006. Web. doi:10.1134/S1063774506020131.
Sadikov, G. G., E-mail: sadgg@igic.ras.ru, Antsyshkina, A. S., Kuznetsova, I. A., & Rodnikova, M. N. Synthesis and the crystal and molecular structure of two modifications of bis(1,10-phenanthroline)trinitratoerbium(III) Er(NO{sub 3}){sub 3}(Phen){sub 2}. United States. doi:10.1134/S1063774506020131.
Sadikov, G. G., E-mail: sadgg@igic.ras.ru, Antsyshkina, A. S., Kuznetsova, I. A., and Rodnikova, M. N. Wed . "Synthesis and the crystal and molecular structure of two modifications of bis(1,10-phenanthroline)trinitratoerbium(III) Er(NO{sub 3}){sub 3}(Phen){sub 2}". United States. doi:10.1134/S1063774506020131.
@article{osti_21091496,
title = {Synthesis and the crystal and molecular structure of two modifications of bis(1,10-phenanthroline)trinitratoerbium(III) Er(NO{sub 3}){sub 3}(Phen){sub 2}},
author = {Sadikov, G. G., E-mail: sadgg@igic.ras.ru and Antsyshkina, A. S. and Kuznetsova, I. A. and Rodnikova, M. N.},
abstractNote = {Two crystalline modifications (I and II) of the phenanthroline complex of erbium nitrate with the same chemical composition, Er(NO{sub 3}){sub 3}(Phen){sub 2}, are synthesized by a procedure similar to that used for preparing the phenanthroline complexes of europium nitrate. The crystal structures of these modifications are determined using X-ray diffraction. Crystals of compound I belong to the isostructural family Ln(NO{sub 3}){sub 3}(Phen){sub 2} (Ln = La-Lu). Crystals of compound II are isostructural to those of modification II (new phase) of the Eu(NO{sub 3}){sub 3}(Phen){sub 2} compound. Crystals of I and II are monoclinic, space group C2/c, and Z = 4. The unit cell parameters are as follows: a = 11.126 A, b = 17.815 A, c = 12.976 A, {beta} = 100.45{sup o}, and V = 2529 A{sup 3} for modification I and a = 9.459 A, b = 15.463 A, c = 17.076 A, {beta} = 93.52 deg., and V = 2493 A{sup 3} for modification II. The molecular complexes in the structures of compounds I and II are nearly identical. The mean lengths of the Er-N and Er-O bonds are equal to 2.500 and 2.466 A in compound I and 2.508 and 2.457 A in compound II, respectively. The difference between the structures of compounds I and II is associated with the difference between intermolecular interactions in the unit cell.},
doi = {10.1134/S1063774506020131},
journal = {Crystallography Reports},
number = 2,
volume = 51,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}