scholarly journals Crystal structure of bis(μ2-tetrabromophthalato-κ2O1:O2)bis[aqua(N,N,N′,N′-tetramethylethane-1,2-diamine-κ2N,N′)copper(II)]

2015 ◽  
Vol 71 (9) ◽  
pp. m171-m172 ◽  
Author(s):  
Luis Manuel Tobón-Trujillo ◽  
Luis Felipe Villanueva-Sánchez ◽  
Diego Martínez-Otero ◽  
Alejandro Dorazco-González
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Complex ◽  
Dinuclear Complex ◽  
Axis Direction ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Supramolecular Chains

In the title complex, [Cu2(C8Br4O4)2(C6H16N2)2(H2O)2], the CuIIcation is chelated by a tetramethylethane-1,2-diamine ligand and coordinated by a water molecule as well as bridged by two tetrabromophthalate anions in a distorted O3N2trigonal–bipyramidal geometry. The two symmetry-related tetrabromophthalate anions bridge the two CuIIcations, forming a centrosymmetric dinuclear complex in which the Cu...Cu separation is 5.054 (2) Å. Intramolecular classic O—H...O hydrogen bonds and weak C—H...O hydrogen bonds occur in the dinuclear molecule. In the crystal, the molecules are linked by weak C—H...Br and C—H...O interactions into supramolecular chains propagating along theb-axis direction.

A new dinuclear ZnII compound with a 1,4-benzenedicarboxylate bridge

2006 ◽  
Vol 62 (7) ◽  
pp. m1535-m1537 ◽  
Author(s):  
Guang-Bo Che
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Supramolecular Structure ◽  
Dinuclear Complex ◽  
Inversion Symmetry ◽  
Two Dimensional ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal

In the compound μ2-1,4-benzenedicarboxylate-κ2 O,O′-bis{aquachloro[4-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)phenol-κ2 N,N′]zinc(II)} dihydrate, [Zn2Cl2(1,4-BDC)(L)2(H2O)2]·2H2O, where 1,4-BDC is the 1,4-benzenedicarboxylate dianion, C8H4O4 2−, and L is 4-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)phenol, C19H12N4O, the ZnII atom is five-coordinated by two N atoms from one L ligand, one Cl− ion, an O atom from a 1,4-BDC anion and one water molecule in an approximate trigonal–bipyramidal geometry. The complete 1,4-BDC ligand is generated by inversion symmetry; it bridges two ZnII atoms to form a dinuclear complex. Neighbouring complexes interact through π–π contacts and various kinds of hydrogen bonds, leading to a two-dimensional supramolecular structure.

[3-Methoxy-2-oxidobenzaldehyde (2-thienylcarbonyl)hydrazonato]dimethyltin(IV)

2006 ◽  
Vol 62 (5) ◽  
pp. m1024-m1026
Author(s):  
Shao-Wen Chen ◽  
Han-Dong Yin
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the molecule of the title complex, [Sn(CH3)2(C13H10N2O3S)], the Sn atom is in a distorted trigonal–bipyramidal geometry. There are two molecules in the asymmetric unit. A centrosymmetric arrangement leads to an Sn2O2 core through weak Sn...O interactions and causes the formation of a dimer. Intermolecular C—H...O hydrogen bonds seem to be effective in the stabilization of the crystal structure.

(N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine-κ3 N,N′,N′′)(trithiocyanurato-κ2 N,S)zinc(II)

2007 ◽  
Vol 63 (3) ◽  
pp. m725-m727
Author(s):  
Jaromír Marek ◽  
Zdeněk Trávníček ◽  
Šárka Čermáková
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Bidentate Ligand ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Centrosymmetric Dimers ◽  
Close Contacts

The structure of the title compound, [Zn(C9H23N3)(C3HN3S3)], consists of discrete molecules connected by N—H...S hydrogen bonds into centrosymmetric dimers. The ZnII atom is pentacoordinated in a deformed trigonal–bipyramidal geometry by three N atoms of a tridentate N,N,N′,N′′,N′′-pentamethyldiethylenetriamine ligand, and one S and one N atoms of a trithiocyanurate dianion bonded as a bidentate ligand. The crystal structure is further stabilized by close contacts of the types C—H...S and C—H...N.

scholarly journals Crystal structure of tris(N-methylsalicylaldiminato-κ2N,O)vanadium(III)

2015 ◽  
Vol 71 (12) ◽  
pp. m225-m225 ◽  
Author(s):  
Jessica Hilbert ◽  
Sven Kabus ◽  
Christian Näther ◽  
Wolfgang Bensch
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Supramolecular Chains

The structure of the title complex, [V(C8H8NO)3], comprises neutral and discrete complexes, in which the VIIIcation is coordinated by three anionicN-methylalicylaldiminate ligands within a slightly distortedmer-N3O3octahedral geometry. In the crystal structure, the molecules are linkedviaC—H...O hydrogen bonds into supramolecular chains that extend along thecaxis.

scholarly journals Dibromido(dimethyl sulfoxide-κO)(6-methyl-2,2′-bipyridine-κ2N,N′)cadmium

2012 ◽  
Vol 68 (8) ◽  
pp. m1124-m1124 ◽  
Author(s):  
Sadif A. Shirvan ◽  
Sara Haydari Dezfuli
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Title Compound ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Bipyridine Ligand ◽  
Distorted Trigonal Bipyramidal

In the title compound, [CdBr2(C11H10N2)(C2H6OS)], the CdIIatom is five-coordinated in a distorted trigonal–bipyramidal geometry by two N atoms from a 6-methyl-2,2′-bipyridine ligand, one O atom from a dimethyl sulfoxide ligand and two Br atoms. An intramolecular C—H...O hydrogen bond occurs. The crystal structure is stabilized by C—H...Br hydrogen bonds and π–π contacts between the pyridine rings [centroid–centroid distances = 3.582 (5) and 3.582 (5) Å].

scholarly journals Crystal structure of (pyridine-κN)bis(quinolin-2-olato-κ2N,O)copper(II) monohydrate

2015 ◽  
Vol 71 (2) ◽  
pp. m38-m39
Author(s):  
Benjamin Hawks ◽  
Jingjing Yan ◽  
Prem Basa ◽  
Shawn Burdette
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Crystal Lattice ◽  
Copper Complexes ◽  
Title Complex ◽  
Dihedral Angles ◽  
Pyridine Ligand ◽  
Pyramidal Geometry ◽  
Square Pyramidal Geometry

The title complex, [Cu(C9H6NO)2(C5H4N)]·H2O, adopts a slightly distorted square-pyramidal geometry in which the axial pyridine ligand exhibits a long Cu—N bond of 2.305 (3) Å. The pyridine ligand forms dihedral angles of 79.5 (5) and 88.0 (1)° with the planes of the two quinolin-2-olate ligands, while the dihedral angle between the quinoline groups of 9.0 (3)° indicates near planarity. The water molecule connects adjacent copper complexes through O—H...O hydrogen bonds to phenolate O atoms, forming a network interconnecting all the complexes in the crystal lattice.

scholarly journals Crystal structure of aquadioxido(2-{[(2-oxidoethyl)imino]methyl}phenolato-κ3O,N,O′)molybdenum(VI)

2015 ◽  
Vol 71 (2) ◽  
pp. m35-m36 ◽  
Author(s):  
Sowmianarayanan Parimala ◽  
Parasuraman Selvam
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Three Dimensional ◽  
Title Complex ◽  
Donor Group ◽  
Distorted Octahedral Coordination ◽  
Axial Ligands ◽  
Dimensional Network ◽  
Distorted Octahedral

The mononuclear title complex, [Mo(C9H9NO2)O2(H2O)], contains an Mo(VI) atom in a distorted octahedral coordination sphere defined by an Mo=O and an Mo—(OH2) bond to the axial ligands and two Mo—O bonds to phenolate and alcoholate O atoms, another Mo=O bond and one Mo—N bond to the imino N atom in the equatorial plane. The five-membered metalla-ring shows an envelope conformation. In the crystal, individual molecules are connected into a layered arrangement parallel to (100) by means of O—H...O hydrogen bonds involving the water molecule as a donor group and the O atoms of neighbouring complexes as acceptor atoms. These interactions lead to the formation of a three-dimensional network.

scholarly journals Crystal structure of poly[aqua[μ-1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole](μ-naphthalene-1,4-dicarboxylato)nickel(II)]

2014 ◽  
Vol 70 (9) ◽  
pp. m324-m325
Author(s):  
Hengye Zou ◽  
Yanjuan Qi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Axis Direction ◽  
Carboxylate Anions ◽  
Distorted Octahedral

In the title compound, [Ni(C12H6O4)(C21H18N4)(H2O)]n, the NiIIcation is coordinated by three carboxylate O atoms of two naphthalene-1,4-dicarboxylate anions, one water molecule and two N atoms of two 1,1′-(9,9-dimethyl-9H-fluoren-2,7-diyl)di-1H-imidazole (DFDI) ligands, giving rise to a slightly distorted octahedral geometry. The NiIIions are linked by the DFDI ligands into chains, which are further connected by the carboxylate anions into double chains that elongate in the theb-axis direction. These double chains are linked by centrosymmetric pairs of O—H...O hydrogen bonds into layers parallel to (10-1). The asymmetric unit consists of one crystallographically independent NiIIcation, one carboxylate and one DFDI ligand, as well as of one water molecule, all of them located in general positions.

scholarly journals Crystal structures of two chiral piperidine derivatives: 1-[(1R)-2-hydroxy-1-phenylethyl]piperidin-4-one and 8-[(1S)-1-phenylethyl]-1,4-dioxa-8-azaspiro[4.5]decane-7-thione

2015 ◽  
Vol 71 (10) ◽  
pp. 1207-1211
Author(s):  
Nancy Romero ◽  
Sylvain Bernès ◽  
Luis F. Roa ◽  
Joel L. Terán ◽  
Dino Gnecco
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Chair Conformation ◽  
Conformational Flexibility ◽  
Chair Conformer ◽  
Axis Direction ◽  
Membered Heterocycle ◽  
Supramolecular Chains

The crystal structures of the two title piperidine derivatives show different conformations for the six-membered heterocycle. TheN-substituted 4-piperidinone 1-[(1R)-2-hydroxy-1-phenylethyl]piperidin-4-one, C13H17NO2, (I), has a chair conformation, while the piperidine substituted in position 2 with a thiocarbonyl group, 8-[(1S)-1-phenylethyl]-1,4-dioxa-8-azaspiro[4.5]decane-7-thione, C15H19NO2S, (II), features a half-chair conformation. Comparison of the two structures, and data retrieved from the literature, suggests that the conformational flexibility is mainly related to the hybridization state of the C atom α to the piperidinic N atom: a Csp3atom favours the chair conformer, while a Csp2atom distorts the ring towards a half-chair conformer. In the crystal structure of (I), weak C—H...O hydrogen bonds link the molecules into supramolecular chains propagating along theb-axis direction. In the crystal of (II), the molecules are linked by weak C—H...S contacts into supramolecular chains propagating along theb-axis direction.

scholarly journals Crystal structure ofN-hydroxyquinoline-2-carboxamide monohydrate

2017 ◽  
Vol 73 (5) ◽  
pp. 795-797
Author(s):  
Inna S. Safyanova ◽  
Kateryna A. Ohui ◽  
Iryna V. Omelchenko ◽  
Svitlana V. Shyshkina
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Tautomeric Form ◽  
Maximum Deviation ◽  
Aromatic Rings ◽  
Axis Direction ◽  
Compound C

The title compound, C10H8N2O2·H2O, consists of anN-hydroxyquinoline-2-carboxamide molecule in the keto tautomeric form and a water molecule connected through an O—H...O hydrogen bond. TheN-hydroxyquinoline-2-carboxamide molecule has a nearly planar structure [maximum deviation = 0.062 (1) Å] and only the hydroxy H atom deviates significantly from the molecule plane. In the crystal, π–π stacking between the aromatic rings [intercentroid distance = 3.887 (1) Å] and intermolecular O—H...O hydrogen bonds organize the crystal components into columns extending along theb-axis direction.

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