@article {495, title = {Magnetic and structural studies on 1,3-diazolate complexes of cobalt(II) - The characterization of three new cobalt(II) molecule-based magnets}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {80}, number = {2}, year = {2002}, note = {ISI Document Delivery No.: 531ZZTimes Cited: 10Cited Reference Count: 35}, month = {Feb}, pages = {133-140}, type = {Article}, abstract = {{The cobalt(II) compounds ([Co(imid)(2)](x) (1), [Co(2-meimid)(2)](x) (2), [Co(4-meimid)(2)](x) (3), [Co(benzimid)(2)](x) (4), and [Co-3(imid)(6)(imidH)(2)](x) (5) (imid = imidazolate}, keywords = {1, 3, 3-diazolates, 5-DIMETHYLPYRAZOLATE, BR, canted spins, CH3, cobalt(II), COMPLEXES, COORDINATION CHEMISTRY, CRYSTAL-STRUCTURE, LIGANDS, LOW-TEMPERATURES, METAL PYRAZOLATE POLYMERS, METALLOCENES, molecule-based magnets, SYSTEMS}, isbn = {0008-4042}, url = {://000174448300002}, author = {Sanchez, V. and Storr, A. and Thompson, R. C.} } @article {495, title = {Magnetic and structural studies on 1,3-diazolate complexes of cobalt(II) - The characterization of three new cobalt(II) molecule-based magnets}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {80}, number = {2}, year = {2002}, note = {ISI Document Delivery No.: 531ZZTimes Cited: 10Cited Reference Count: 35}, month = {Feb}, pages = {133-140}, type = {Article}, abstract = {{The cobalt(II) compounds ([Co(imid)(2)](x) (1), [Co(2-meimid)(2)](x) (2), [Co(4-meimid)(2)](x) (3), [Co(benzimid)(2)](x) (4), and [Co-3(imid)(6)(imidH)(2)](x) (5) (imid = imidazolate}, keywords = {1, 3, 3-diazolates, 5-DIMETHYLPYRAZOLATE, BR, canted spins, CH3, cobalt(II), COMPLEXES, COORDINATION CHEMISTRY, CRYSTAL-STRUCTURE, LIGANDS, LOW-TEMPERATURES, METAL PYRAZOLATE POLYMERS, METALLOCENES, molecule-based magnets, SYSTEMS}, isbn = {0008-4042}, url = {://000174448300002}, author = {Sanchez, V. and Storr, A. and Thompson, R. C.} } @article {5160, title = {Polybis(pyrazolato)iron(II) and poly-2,2 {\textquoteright} bipyridinetetrakis(imidazolato)-diiron(II) and -dicobalt(II): from short-range magnetic interactions in the pyrazolate to long-range ferromagnetic ordering in the imidazolates}, journal = {Polyhedron}, volume = {20}, number = {11-14}, year = {2001}, note = {ISI Document Delivery No.: 451LWTimes Cited: 11Cited Reference Count: 307th International Conference on Molecule-Base Magnets (ICMM 2000)SEP 16-21, 2000SAN ANTONIO, TEXAS}, month = {May}, pages = {1577-1585}, type = {Proceedings Paper}, abstract = {Polybis(pyrazolato)iron(II), [Fe(pz)(2)](x) (1) has an extended chain ID structure in which iron ions are doubly bridged by pyrazolate ligands. The compound exhibits weak antiferromagnetic interactions. The magnetic susceptibility data were fit to a Heisenberg model for chains of antiferromagnetically coupled S= 2 metal centers, yielding the magnetic parameters -J= 0.59 cm(-1) and g = 2.01. Poly-2,2{\textquoteright}-bipyridinetetrakis(imidazolato)diiron(II), [Fe-2(imid)(3)(bipy)](x) (2) and the isomorphous cobalt compound, 3, have 2D extended structures in which double layered sheets of alternating tetrahedrally and octahedrally coordinated metal ions are linked by single bridging imidazolates. The octahedral metal centers are additionally coordinated by 2,2{\textquoteright}-bipyridine ligands, which occupy positions between the sheets, isolating the sheets from each other. The presence of the two different iron centers in 2 is confirmed by ambient temperature Mossbauer studies. The magnetic properties of these materials reveal a transition to long-range ferromagnetic order below 11 K for 2 and below 13 K for 3. Both materials reveal magnetic hysteresis at 4.8 K. Analysis of the data yield, for 2 and 3, respectively, coercive fields of 15 and 125 G and remanent magnetizations of 200 and 1900 cm(3) G mol(-1). (C) 2001 Elsevier Science Ltd. All rights reserved.}, keywords = {antiferromagenetism, COMPLEXES, COORDINATION CHEMISTRY, crystal structures, ferromagnetic ordering, iron(II) and cobalt(II) imidazolates, iron(II) pyrazolate, LIGANDS, LOW-TEMPERATURES, METALLOCENES, MOSSBAUER, POLYMERS, SERIES, SYSTEMS}, isbn = {0277-5387}, url = {://000169804400076}, author = {Patrick, B. O. and Reiff, W. M. and Sanchez, V. and Storr, A. and Thompson, R. C.} } @article {5160, title = {Polybis(pyrazolato)iron(II) and poly-2,2 {\textquoteright} bipyridinetetrakis(imidazolato)-diiron(II) and -dicobalt(II): from short-range magnetic interactions in the pyrazolate to long-range ferromagnetic ordering in the imidazolates}, journal = {Polyhedron}, volume = {20}, number = {11-14}, year = {2001}, note = {ISI Document Delivery No.: 451LWTimes Cited: 11Cited Reference Count: 307th International Conference on Molecule-Base Magnets (ICMM 2000)SEP 16-21, 2000SAN ANTONIO, TEXAS}, month = {May}, pages = {1577-1585}, type = {Proceedings Paper}, abstract = {Polybis(pyrazolato)iron(II), [Fe(pz)(2)](x) (1) has an extended chain ID structure in which iron ions are doubly bridged by pyrazolate ligands. The compound exhibits weak antiferromagnetic interactions. The magnetic susceptibility data were fit to a Heisenberg model for chains of antiferromagnetically coupled S= 2 metal centers, yielding the magnetic parameters -J= 0.59 cm(-1) and g = 2.01. Poly-2,2{\textquoteright}-bipyridinetetrakis(imidazolato)diiron(II), [Fe-2(imid)(3)(bipy)](x) (2) and the isomorphous cobalt compound, 3, have 2D extended structures in which double layered sheets of alternating tetrahedrally and octahedrally coordinated metal ions are linked by single bridging imidazolates. The octahedral metal centers are additionally coordinated by 2,2{\textquoteright}-bipyridine ligands, which occupy positions between the sheets, isolating the sheets from each other. The presence of the two different iron centers in 2 is confirmed by ambient temperature Mossbauer studies. The magnetic properties of these materials reveal a transition to long-range ferromagnetic order below 11 K for 2 and below 13 K for 3. Both materials reveal magnetic hysteresis at 4.8 K. Analysis of the data yield, for 2 and 3, respectively, coercive fields of 15 and 125 G and remanent magnetizations of 200 and 1900 cm(3) G mol(-1). (C) 2001 Elsevier Science Ltd. All rights reserved.}, keywords = {antiferromagenetism, COMPLEXES, COORDINATION CHEMISTRY, crystal structures, ferromagnetic ordering, iron(II) and cobalt(II) imidazolates, iron(II) pyrazolate, LIGANDS, LOW-TEMPERATURES, METALLOCENES, MOSSBAUER, POLYMERS, SERIES, SYSTEMS}, isbn = {0277-5387}, url = {://000169804400076}, author = {Patrick, B. O. and Reiff, W. M. and Sanchez, V. and Storr, A. and Thompson, R. C.} } @article {4641, title = {Iron(II) 2-methylimidazolate and copper(II) 1,2,4-triazolate complexes: systems exhibiting long-range ferromagnetic ordering at low temperatures}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {4}, year = {1999}, note = {ISI Document Delivery No.: 204JXTimes Cited: 17Cited Reference Count: 27}, month = {Apr}, pages = {425-433}, type = {Article}, abstract = {{Crystals of [Fe(2-methylimidazolate)(2). 0.13(FeCp2)](x), 1, are orthorhombic}, keywords = {1, 2, 2-methylimidazolate, 3, 4-triazolate, 5-DIMETHYLPYRAZOLATE, BR, canted spins, CH3, COMPLEXES, copper, CRYSTAL, ferromagnets, iron, LIGANDS, MAGNETIC-PROPERTIES, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0008-4042}, url = {://000080762100003}, author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.} } @article {4641, title = {Iron(II) 2-methylimidazolate and copper(II) 1,2,4-triazolate complexes: systems exhibiting long-range ferromagnetic ordering at low temperatures}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {4}, year = {1999}, note = {ISI Document Delivery No.: 204JXTimes Cited: 17Cited Reference Count: 27}, month = {Apr}, pages = {425-433}, type = {Article}, abstract = {{Crystals of [Fe(2-methylimidazolate)(2). 0.13(FeCp2)](x), 1, are orthorhombic}, keywords = {1, 2, 2-methylimidazolate, 3, 4-triazolate, 5-DIMETHYLPYRAZOLATE, BR, canted spins, CH3, COMPLEXES, copper, CRYSTAL, ferromagnets, iron, LIGANDS, MAGNETIC-PROPERTIES, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0008-4042}, url = {://000080762100003}, author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.} } @article {4641, title = {Iron(II) 2-methylimidazolate and copper(II) 1,2,4-triazolate complexes: systems exhibiting long-range ferromagnetic ordering at low temperatures}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {4}, year = {1999}, note = {ISI Document Delivery No.: 204JXTimes Cited: 17Cited Reference Count: 27}, month = {Apr}, pages = {425-433}, type = {Article}, abstract = {{Crystals of [Fe(2-methylimidazolate)(2). 0.13(FeCp2)](x), 1, are orthorhombic}, keywords = {1, 2, 2-methylimidazolate, 3, 4-triazolate, 5-DIMETHYLPYRAZOLATE, BR, canted spins, CH3, COMPLEXES, copper, CRYSTAL, ferromagnets, iron, LIGANDS, MAGNETIC-PROPERTIES, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0008-4042}, url = {://000080762100003}, author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.} } @article {4642, title = {The methylgallium-2-carboxylatobenzimidazolato hexamer, [MeGa center dot C8H4N2O2](6)center dot C6H6 center dot(Me2C6H4)(2); synthesis and X-ray crystal structure}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {4}, year = {1999}, note = {ISI Document Delivery No.: 204JXTimes Cited: 12Cited Reference Count: 18}, month = {Apr}, pages = {434-438}, type = {Article}, abstract = {{The room-temperature reaction of Me3Ga with benzimidazole 2-carboxylic acid in xylene solvent has yielded a novel crystalline hexameric gallium compound with "MeGa" moieties bridged by the doubly depronotated ligand precursor. Crystals of [MeGa(4,5-benzimidazolato-2-carboxylato)](6).(C6H6).(m-Me2C6H4)(2) are monoclinic}, keywords = {3, 5-DIMETHYLPYRAZOLATE, benzene intercalate, benzimidazolecarboxylic acid, COMPLEXES, crystal structure, gallium, METALLOCENES}, isbn = {0008-4042}, url = {://000080762100004}, author = {Rettig, S. J. and Storr, A. and Trotter, J.} } @article {4642, title = {The methylgallium-2-carboxylatobenzimidazolato hexamer, [MeGa center dot C8H4N2O2](6)center dot C6H6 center dot(Me2C6H4)(2); synthesis and X-ray crystal structure}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {77}, number = {4}, year = {1999}, note = {ISI Document Delivery No.: 204JXTimes Cited: 12Cited Reference Count: 18}, month = {Apr}, pages = {434-438}, type = {Article}, abstract = {{The room-temperature reaction of Me3Ga with benzimidazole 2-carboxylic acid in xylene solvent has yielded a novel crystalline hexameric gallium compound with "MeGa" moieties bridged by the doubly depronotated ligand precursor. Crystals of [MeGa(4,5-benzimidazolato-2-carboxylato)](6).(C6H6).(m-Me2C6H4)(2) are monoclinic}, keywords = {3, 5-DIMETHYLPYRAZOLATE, benzene intercalate, benzimidazolecarboxylic acid, COMPLEXES, crystal structure, gallium, METALLOCENES}, isbn = {0008-4042}, url = {://000080762100004}, author = {Rettig, S. J. and Storr, A. and Trotter, J.} } @article {4640, title = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal structure and magnetic properties of a one-dimensional material exhibiting ferromagnetic ordering below 8 K}, journal = {Inorganic Chemistry}, volume = {38}, number = {25}, year = {1999}, note = {ISI Document Delivery No.: 265LFTimes Cited: 10Cited Reference Count: 28}, month = {Dec}, pages = {5920-+}, type = {Article}, abstract = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal Structure and Magnetic Properties of a One-Dimensional Material Exhibiting Ferromagnetic Ordering below 8 K. The title compound has a rodlike 1-D structure in which iron ions are double bridged by 1-methyl-2-thioimidazolate ligands and the metal chromophores alternate along the chain between FeS4 and FeN4. Antiferromagnetic intrachain coupling with spin canting generates residual spin on the chains that undergo long-range ferromagnetic order below 8 K.}, keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, LIGANDS, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0020-1669}, url = {://000084245200045}, author = {Rettig, S. J. and Sanchez, V. and Storr, A. and Thompson, R. C. and Trotter, J.} } @article {4640, title = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal structure and magnetic properties of a one-dimensional material exhibiting ferromagnetic ordering below 8 K}, journal = {Inorganic Chemistry}, volume = {38}, number = {25}, year = {1999}, note = {ISI Document Delivery No.: 265LFTimes Cited: 10Cited Reference Count: 28}, month = {Dec}, pages = {5920-+}, type = {Article}, abstract = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal Structure and Magnetic Properties of a One-Dimensional Material Exhibiting Ferromagnetic Ordering below 8 K. The title compound has a rodlike 1-D structure in which iron ions are double bridged by 1-methyl-2-thioimidazolate ligands and the metal chromophores alternate along the chain between FeS4 and FeN4. Antiferromagnetic intrachain coupling with spin canting generates residual spin on the chains that undergo long-range ferromagnetic order below 8 K.}, keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, LIGANDS, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0020-1669}, url = {://000084245200045}, author = {Rettig, S. J. and Sanchez, V. and Storr, A. and Thompson, R. C. and Trotter, J.} } @article {4640, title = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal structure and magnetic properties of a one-dimensional material exhibiting ferromagnetic ordering below 8 K}, journal = {Inorganic Chemistry}, volume = {38}, number = {25}, year = {1999}, note = {ISI Document Delivery No.: 265LFTimes Cited: 10Cited Reference Count: 28}, month = {Dec}, pages = {5920-+}, type = {Article}, abstract = {Polybis(1-methyl-2-thioimidazolate)iron(II): Crystal Structure and Magnetic Properties of a One-Dimensional Material Exhibiting Ferromagnetic Ordering below 8 K. The title compound has a rodlike 1-D structure in which iron ions are double bridged by 1-methyl-2-thioimidazolate ligands and the metal chromophores alternate along the chain between FeS4 and FeN4. Antiferromagnetic intrachain coupling with spin canting generates residual spin on the chains that undergo long-range ferromagnetic order below 8 K.}, keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, LIGANDS, METAL PYRAZOLATE POLYMERS, METALLOCENES}, isbn = {0020-1669}, url = {://000084245200045}, author = {Rettig, S. J. and Sanchez, V. and Storr, A. and Thompson, R. C. and Trotter, J.} } @article {4386, title = {Coordination complexes derived from 3,6-di(2-pyridyl)-1,4-dihydro-1,2,4,5-tetrazine (DPDHT). Synthesis and molecular structure of [(DPT)(GaMe2)2]}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {76}, number = {12}, year = {1998}, note = {ISI Document Delivery No.: 180RKTimes Cited: 3Cited Reference Count: 25}, month = {Dec}, pages = {1800-1804}, type = {Article}, abstract = {{The facile reaction of 3,6-di(2-pyridyl)-1,4-dihydro-1,2,4,5-tetrazine (DPDHT) (1) with trimethylgallium has resulted in the formation of the purple crystalline product, [(DPT)(GaMe2)(2)] (2), via methane elimination. Crystals of [(DPT)(GaMe2)(2)] are orthorhombic, Pbca}, keywords = {3, 5-DIMETHYLPYRAZOLATE, crystal structure, dipyridyldihydrotetrazine, MAGNETIC-PROPERTIES, METAL PYRAZOLATE POLYMERS, METALLOCENES, methylgallium}, isbn = {0008-4042}, url = {://000079398800003}, author = {Preston, P. N. and Rettig, S. J. and Storr, A. and Trotter, J.} } @article {4386, title = {Coordination complexes derived from 3,6-di(2-pyridyl)-1,4-dihydro-1,2,4,5-tetrazine (DPDHT). Synthesis and molecular structure of [(DPT)(GaMe2)2]}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {76}, number = {12}, year = {1998}, note = {ISI Document Delivery No.: 180RKTimes Cited: 3Cited Reference Count: 25}, month = {Dec}, pages = {1800-1804}, type = {Article}, abstract = {{The facile reaction of 3,6-di(2-pyridyl)-1,4-dihydro-1,2,4,5-tetrazine (DPDHT) (1) with trimethylgallium has resulted in the formation of the purple crystalline product, [(DPT)(GaMe2)(2)] (2), via methane elimination. Crystals of [(DPT)(GaMe2)(2)] are orthorhombic, Pbca}, keywords = {3, 5-DIMETHYLPYRAZOLATE, crystal structure, dipyridyldihydrotetrazine, MAGNETIC-PROPERTIES, METAL PYRAZOLATE POLYMERS, METALLOCENES, methylgallium}, isbn = {0008-4042}, url = {://000079398800003}, author = {Preston, P. N. and Rettig, S. J. and Storr, A. and Trotter, J.} }