Unequivocal characterisation of a [Ln(terpy)(NO3)(3) center dot (H2O)] complex. The synthesis and structure of [M(terpy)(NO3)(3) center dot (H2O)] (M = Eu, Tb); a comparison with the structure of [Eu(biPY)(2)(NO3)(3)] and with other europium nitrate complexes {terpy=2,2 ': 6 ',2 ''-terpyridyl; bipy=2,2 '-bipyridyl}

S A Cotton, O E Noy, F Liesener, P R Raithby

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Abstract

The complexes [M(terpy)(NO3)(3).(H2O)] (M = Eu(1), Tb(2); terpy=2,2':6',2"-terpyridyl) are isomorphous and crystallise in the triclinic space group P (1) over bar with Z=2, while the related complex [Eu(bipy)(2)(NO3)(3)] (3) (bipy=2,2'-bipyridyl) crystallises in the orthorhombic space group Pcan (non-standard setting of Pbcn) with Z=4 such that the two halves of the molecule are related by a crystallographic twofold axis. In each of the three complexes the metal atom is 10 co-ordinate and all three contain three bidentate nitrate groups. In complexes 1 and 2 the coordination sphere is completed by the three nitrogen donor atoms of the terpyridine ligand and by the oxygen donor atom of the coordinated water solvent molecule. In complex 3 the coordination sphere is completed by two nitrogen donor atoms from each of the two bipyridine ligands. These structures are compared with other lanthanide complexes of related ligands and the factors affecting the co-ordination geometry evaluated. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalInorganica Chimica Acta
Volume344
Publication statusPublished - 2003

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Europium
2,2'-Dipyridyl
europium
Nitrates
nitrates
Atoms
Ligands
synthesis
ligands
atoms
Nitrogen
nitrogen
Lanthanoid Series Elements
Molecules
Coordination Complexes
Rare earth elements
molecules
Oxygen
Geometry
Water

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title = "Unequivocal characterisation of a [Ln(terpy)(NO3)(3) center dot (H2O)] complex. The synthesis and structure of [M(terpy)(NO3)(3) center dot (H2O)] (M = Eu, Tb); a comparison with the structure of [Eu(biPY)(2)(NO3)(3)] and with other europium nitrate complexes {terpy=2,2 ': 6 ',2 ''-terpyridyl; bipy=2,2 '-bipyridyl}",
abstract = "The complexes [M(terpy)(NO3)(3).(H2O)] (M = Eu(1), Tb(2); terpy=2,2':6',2{"}-terpyridyl) are isomorphous and crystallise in the triclinic space group P (1) over bar with Z=2, while the related complex [Eu(bipy)(2)(NO3)(3)] (3) (bipy=2,2'-bipyridyl) crystallises in the orthorhombic space group Pcan (non-standard setting of Pbcn) with Z=4 such that the two halves of the molecule are related by a crystallographic twofold axis. In each of the three complexes the metal atom is 10 co-ordinate and all three contain three bidentate nitrate groups. In complexes 1 and 2 the coordination sphere is completed by the three nitrogen donor atoms of the terpyridine ligand and by the oxygen donor atom of the coordinated water solvent molecule. In complex 3 the coordination sphere is completed by two nitrogen donor atoms from each of the two bipyridine ligands. These structures are compared with other lanthanide complexes of related ligands and the factors affecting the co-ordination geometry evaluated. (C) 2002 Elsevier Science B.V. All rights reserved.",
author = "Cotton, {S A} and Noy, {O E} and F Liesener and Raithby, {P R}",
note = "ID number: ISI:000180948100005",
year = "2003",
language = "English",
volume = "344",
pages = "37--42",
journal = "Inorganica Chimica Acta",
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TY - JOUR

T1 - Unequivocal characterisation of a [Ln(terpy)(NO3)(3) center dot (H2O)] complex. The synthesis and structure of [M(terpy)(NO3)(3) center dot (H2O)] (M = Eu, Tb); a comparison with the structure of [Eu(biPY)(2)(NO3)(3)] and with other europium nitrate complexes {terpy=2,2 ': 6 ',2 ''-terpyridyl; bipy=2,2 '-bipyridyl}

AU - Cotton, S A

AU - Noy, O E

AU - Liesener, F

AU - Raithby, P R

N1 - ID number: ISI:000180948100005

PY - 2003

Y1 - 2003

N2 - The complexes [M(terpy)(NO3)(3).(H2O)] (M = Eu(1), Tb(2); terpy=2,2':6',2"-terpyridyl) are isomorphous and crystallise in the triclinic space group P (1) over bar with Z=2, while the related complex [Eu(bipy)(2)(NO3)(3)] (3) (bipy=2,2'-bipyridyl) crystallises in the orthorhombic space group Pcan (non-standard setting of Pbcn) with Z=4 such that the two halves of the molecule are related by a crystallographic twofold axis. In each of the three complexes the metal atom is 10 co-ordinate and all three contain three bidentate nitrate groups. In complexes 1 and 2 the coordination sphere is completed by the three nitrogen donor atoms of the terpyridine ligand and by the oxygen donor atom of the coordinated water solvent molecule. In complex 3 the coordination sphere is completed by two nitrogen donor atoms from each of the two bipyridine ligands. These structures are compared with other lanthanide complexes of related ligands and the factors affecting the co-ordination geometry evaluated. (C) 2002 Elsevier Science B.V. All rights reserved.

AB - The complexes [M(terpy)(NO3)(3).(H2O)] (M = Eu(1), Tb(2); terpy=2,2':6',2"-terpyridyl) are isomorphous and crystallise in the triclinic space group P (1) over bar with Z=2, while the related complex [Eu(bipy)(2)(NO3)(3)] (3) (bipy=2,2'-bipyridyl) crystallises in the orthorhombic space group Pcan (non-standard setting of Pbcn) with Z=4 such that the two halves of the molecule are related by a crystallographic twofold axis. In each of the three complexes the metal atom is 10 co-ordinate and all three contain three bidentate nitrate groups. In complexes 1 and 2 the coordination sphere is completed by the three nitrogen donor atoms of the terpyridine ligand and by the oxygen donor atom of the coordinated water solvent molecule. In complex 3 the coordination sphere is completed by two nitrogen donor atoms from each of the two bipyridine ligands. These structures are compared with other lanthanide complexes of related ligands and the factors affecting the co-ordination geometry evaluated. (C) 2002 Elsevier Science B.V. All rights reserved.

M3 - Article

VL - 344

SP - 37

EP - 42

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

SN - 0020-1693

ER -