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  • 2000-2004  (12)
  • 1985-1989  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Solid-state structures of group 1 and group 2 metal 1,5-naphthalenedisulfonates: systematic investigation of lamellar three-dimensional networks constructed by metal arenedisulfonate (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 520-530 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Seven Group 1 and Group 2 1,5-naphthalenedisulfonates (1,5-nds) have been synthesized and structurally characterized by single-crystal X-ray diffraction, IR spectroscopy and thermal gravimetric analysis. For Group 1 metal complexes, with M = Li+ (1), Na+ (2) and K+ (3), all crystallize in the same space group (P21/c) with the same composition, [M2(1,5-nds)(H2O)2]. They adopt similar three-dimensional packing arrangements with the metal–sulfonate inorganic layers pillared by naphthalene rings. However, the coordination behavior of three metal cations toward the SO_3^- group and water molecule are different, resulting in different architectures for the inorganic portion. For Group 2 complexes with M = Mg2+ (4), Ca2+ (5), Sr2+ (6) and Ba2+ (7), Mg2+ shows no direct coordination by the SO_3^- group while Ca2+ is coordinated by four SO_3^- groups and a two-dimensional network is formed. Complexes (6) and (7) are isostructural, adopting the same three-dimensional, inorganic–organic pillared framework as seen for (1)–(3). The coordination behavior of the metal cations in these structures neatly illustrates the increase in coordination strength with decreasing charge/radius ratio for Group 1 and Group 2 metal cations with large organic anions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010876810100862X
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  • 2
    Electronic Resource
    Electronic Resource
    catena-Poly[[silver(I)-μ-[(E)-1,2-bis(2-pyridyl)ethylene-N:N′]] nitrate] (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 1075-1076 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title complex, {[Ag(C12H10N2)]NO3}n, the Ag atom, which is in a linear AgN2 geometry, is surrounded by two trans-related N atoms of two bpe ligands [Ag—N = 2.173 (3) and 2.176 (3) Å; bpe is trans-1,2-bis(2-pyridyl)ethylene]. The bpe ligands bridge neighbouring Ag atoms to form zigzag polymeric chains in the lattice. These adjacent one-dimensional zigzag chains are extended into a three-dimensional supramolecular array by strong interchain π...π interactions between the pyridyl rings of adjacent chains.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100008647
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  • 3
    Electronic Resource
    Electronic Resource
    catena-Poly[[[bis(N,N′-diphenylthiourea)cadmium(II)]-di-μ-thiocyanato] dihydrate] (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e430-e431 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Bridging by the two thiocyanato groups in centrosymmetric six-coordinate bis(thiocyanato)bis(diphenylthiourea)cadmium(II) dihydrate leads tothe formation of eight-membered [Cd—SCN→Cd—SCN→] rings that are linked at the metal atom to furnish chains running parallel to the a axis, i.e {[Cd(NCS)2(C13H12N2S)2]·2H2O}n.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011902
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  • 4
    Electronic Resource
    Electronic Resource
    Bis(dicyclohexylammonium) adipate monohydrate (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e111-e112 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the asymmetric unit of the title compound, 2C12H24N+·C6H8O42−·H2O, the carboxylate ion lies about an inversion center, the water molecule is on a twofold axis and the sec-ammonium cation is in a general position. Cations link the oxygen ends of two adjacent carboxylate anions to form an eight-membered ring [N...O 2.683 (3) and 2.711 (3) Å]. The ion pair propagates as a linear chain and adjacent chains are linked through the water molecules [O...O 2.966 (3) Å] into layers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100002419
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  • 5
    Electronic Resource
    Electronic Resource
    Bis(thiosemicarbazide-S,N)zinc(II) dinitrate (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 44-45 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title compound, [Zn(CH5N3S)2](NO3)2, the zinc(II) ion is located on the twofold axis and chelated by two thiosemicarbazide ligands with Zn—S and Zn—N distances of 2.0904 (17) and 2.2672 (6) Å, respectively. Thus the central zinc(II) is four-coordinated and in a distorted tetrahedral geometry. The inter- and intramolecular hydrogen bonds formed between thiosemicarbazide ligands and nitrate anions assemble the molecules into a one-dimensional chain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270199012974
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  • 6
    Electronic Resource
    Electronic Resource
    Di-μ-bromo-bis[bromo(di-2-pyridylmethanediol-N,O,N′)cadmium(II)] trihydrate (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 969-970 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Di-2-pyridyl ketone reacts with CdBr2 in water to form the title centrosymmetric dinuclear complex, [Cd2Br4(C11H10N2O2)2]·3H2O, in which each metal atom is coordinated by an N,O,N′-chelated di-2-pyridylmethanediol ligand, two bridging bromo ligands and one terminal bromo ligand in a distorted octahedral geometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S010827010000754X
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  • 7
    Electronic Resource
    Electronic Resource
    Trigonal–planar silver coordination in (3,5-dinitrobenzoato)bis(triphenylphosphine)silver(I) (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e318-e319 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The three-coordinate Ag atom in the title compound, [Ag(C7H3N2O6)(C18H15P)2], shows trigonal–planar coordination [P—Ag—P = 147.1 (1)° and ΣAg = 359.0 (3)°]. Adjacent molecules are linked through the O atoms of adjacent nitro groups [Ag...O = 3.205 (3) and 3.302 (4) Å] into a zigzag chain running parallel to the c axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100008957
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  • 8
    Electronic Resource
    Electronic Resource
    catena-Poly[[[bis(perchlorato-O)(1,10-phenanthroline-N,N′)copper(II)]-μ-4,4′-bipyridine-N:N′] monohydrate] (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e374-e375 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The Cu atom in the title complex {[Cu(C10H8N2)(C12H8N2)(ClO4)2]·H2O}n, has an N4O2 octahedral coordination geometry, the Cu atoms being bridged by the bipyridine and chelated by the phenanthroline heterocycles. Adjacent molecules are linked into a zigzag chain running along the c axis of the monoclinic unit cell. The chains are connected through lattice water molecules to produce a layer structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100011057
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  • 9
    Electronic Resource
    Electronic Resource
    Poly[cadmium(II)-μ-4,4′-oxydianiline-N:N′-di-μ-thiocyanato-N:S] (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 1285-1287 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title polymeric complex, [Cd(SCN)2(C12H12N2O)], exhibits a three-dimensional framework in which each CdII atom is bridged by two η-1,3-(SCN)− groups, forming a double-stranded chain. The unique CdII atom lies on an inversion centre and the coordination sphere is completed by two terminal N atoms from two different 4,4′-oxydianiline (4,4′-Oda) ligands, furnishing a CdS2N4 octahedral geometry. Adjacent polymeric double-stranded chains are linked via the 4,4′-Oda ligands, which lie across twofold rotation axes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270101014305
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  • 10
    Electronic Resource
    Electronic Resource
    Bis(μ-hexamethylenetetramine)bis(aquadibromocadmium)diaquadibromocadmium dihydrate (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 960-962 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, poly[[diaquadibromocadmium-μ-(1,3,5,7-tetraazatricyclo[3.3.1.13,7]decane-N1:N5)-aquacadmium-di-μ-bromo-aquacadmium-μ-(1,3,5,7-tetraazatricyclo[3.3.1.13,7]decane-N1:N5)-di-μ-bromo] dihydrate], [Cd3Br6(C6H12N4)2(H2O)4]·2H2O, is made up of two-dimensional neutral rectangular coordination layers. Each rectangular subunit is enclosed by a pair of Cd3(μ2-Br)6(H2O)3 fragments and a pair of (μ2-hmt)Cd(H2O)2Br2(μ2-hmt) fragments as sides (hmt is hexamethylenetetramine). The unique CdII atom in the Cd2Br2 ring in the Cd3(μ2-Br)6(H2O)3 fragment is in a slightly distorted octahedral CdNOBr4 geometry, surrounded by one hmt ligand [2.433 (5) Å], one aqua ligand [2.273 (4) Å] and four Br atoms [2.6409 (11)–3.0270 (14) Å]. The CdII atom in the (μ2-hmt)Cd(H2O)2Br2(μ2-hmt) fragment lies on an inversion center and is in a highly distorted octahedral CdN2O2Br2 geometry, surrounded by two trans-related N atoms of two hmt ligands [2.479 (5) Å], two trans-related aqua ligands [2.294 (4) Å] and two trans-related Br atoms [2.6755 (12) Å]. Adjacent two-dimensional coordination sheets are connected into a three-dimensional network by hydrogen bonds involving lattice water molecules, and the aqua, bromo and hmt ligands belonging to different layers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100007435
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