scholarly journals Crystal structure of the new hybrid material bis(1,4-diazoniabicyclo[2.2.2]octane) di-μ-chlorido-bis[tetrachloridobismuthate(III)] dihydrate

2015 ◽  
Vol 71 (11) ◽  
pp. 1384-1387
Author(s):  
Marwen Chouri ◽  
Habib Boughzala
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Room Temperature ◽  
Molar Ratio ◽  
Water Molecules ◽  
Site Symmetry ◽  
Two Dimensional ◽  
Slow Evaporation ◽  
Solution Ph

The title compound bis(1,4-diazoniabicyclo[2.2.2]octane) di-μ-chlorido-bis[tetrachloridobismuthate(III)] dihydrate, (C6H14N2)2[Bi2Cl10]·2H2O, was obtained by slow evaporation at room temperature of a hydrochloric aqueous solution (pH = 1) containing bismuth(III) nitrate and 1,4-diazabicyclo[2.2.2]octane (DABCO) in a 1:2 molar ratio. The structure displays a two-dimensional arrangement parallel to (100) of isolated [Bi2Cl10]4−bioctahedra (site symmetry -1) separated by layers of organic 1,4-diazoniabicyclo[2.2.2]octane dications [(DABCOH2)2+] and water molecules. O—H...Cl, N—H...O and N—H...Cl hydrogen bonds lead to additional cohesion of the structure.

scholarly journals Synthesis and structural studies of a new complex ofcatena-poly[p-anisidinium [[diiodidobismuthate(III)]-di-μ-iodido] dihydrate]

2015 ◽  
Vol 71 (11) ◽  
pp. 1352-1355
Author(s):  
Mohamed El Mehdi Touati ◽  
S. Elleuch ◽  
Habib Boughzala
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Hybrid Material ◽  
Room Temperature ◽  
Water Molecules ◽  
Structural Studies ◽  
Slow Evaporation ◽  
Inorganic Hybrid ◽  
Anionic Sublattice ◽  
Inorganic Layers

A new organic–inorganic hybrid material, {(C7H10NO)[BiI4]·2H2O}n, has been synthesized by slow evaporation of an aqueous solution at room temperature. The anionic sublattice of the crystal is built up by [BiI6] octahedra sharing edges. The resulting zigzag chains extend along thea-axis direction and are arranged in a distorted hexagonal rod packing. Thep-anisidinium cations and the water molecules are located in the voids of the anionic sublattice. The cations are linked to each other through N—H...O hydrogen bonds with the water molecules, and also through weaker N—H...I interactions to the anionic inorganic layers.

scholarly journals Crystal structure of bis(2-amino-5-chloropyridinium) tetrachloridocobaltate(II)

2015 ◽  
Vol 71 (5) ◽  
pp. 555-557 ◽  
Author(s):  
Marwa Mghandef ◽  
Habib Boughzala
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Room Temperature ◽  
Asymmetric Unit ◽  
Slow Evaporation ◽  
Acta Cryst

The title salt, (C5H6ClN2)2[CoCl4], was synthesized by slow evaporation of an aqueous solution at room temperature. The asymmetric unit consists of two essentially planar (C5H6ClN2)+cations [maximum deviations = 0.010 (3) and 0.014 (3) Å] that are nearly perpendicular to each other [dihedral angle = 84.12 (7)°]. They are bonded through N—H...Cl hydrogen bonds to distorted [CoCl4]2−tetrahedra, leading to the formation of undulating layers parallel to (100). The structure is isotypic with the Zn analogue [Kefiet. al(2011).Acta Cryst.E67, m355–m356.]

Piperazinediium Diselenatohexaaquacobaltate(II) Dihydrate (C4H12N2)[Co(SeO4)2(H2O)4]·2H2O

2012 ◽  
Vol 194 ◽  
pp. 171-174 ◽  
Author(s):  
Nouha Loulou Nkhili ◽  
Walid Rekik ◽  
Houcine Naili ◽  
Tahar Mhiri ◽  
Thierry Bataille
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Hydrogen Bonds ◽  
Hybrid Material ◽  
Room Temperature ◽  
Water Molecules ◽  
Slow Evaporation ◽  
Monoclinic System ◽  
Space Group ◽  
Evaporation Method

The new hybrid material, (C4H12N2)[Co(H2O)4(SeO4)2]·2H2O, has been synthesized by the slow evaporation method at room temperature and crystallographically characterized. It crystallizes in the monoclinic system, space group P21 /n. The crystal structure of this compound consists of transition metal, Co(II), octahedrally coordinated by four water molecules and two selenate groups forming the [Co(H2O)4(SeO4)2]2-anions, water molecules and piperazinediium cations (C4H12N2)2+linked together by two types of hydrogen bonds, OW–H…O and N–H…O.

scholarly journals Bis(tetraethylammonium) oxalate dihydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2382-o2383 ◽  
Author(s):  
Timothy J. McNeese ◽  
Robert D. Pike
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Molar Ratio ◽  
Water Molecules ◽  
Oxalate Dihydrate ◽  
Carboxylate Groups ◽  
Graph Set ◽  
Oxalate Ion

The title compound, 2C8H20N+·C2O42−·2H2O, synthesized by neutralizing H2C2O4·2H2O with (C2H5)4NOH in a 1:2 molar ratio, is a deliquescent solid. The oxalate ion is nonplanar, with a dihedral angle between carboxylate groups of 64.37 (2)°. O—H...O hydrogen bonds of moderate strength link the O atoms of the water molecules and the oxalate ions into rings parallel to thecaxis. The rings exhibit the graph-set motifR44(12). In addition, there are weak C—H...O interactions in the crystal structure.

Bis{4-[(4-pyridyl)ethenyl]pyridinium} 4-sulfonatobenzoate trihydrate

2006 ◽  
Vol 62 (4) ◽  
pp. o1529-o1531 ◽  
Author(s):  
Li-Ping Zhang ◽  
Long-Guan Zhu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Proton Transfer ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
One Dimensional ◽  
Π Stacking ◽  
Dimensional Network ◽  
Hydrogen Bonded

In the crystal structure of the title organic proton-transfer complex, 2C12H11N2 +·C7H4O5S2−·3H2O, the cations form one-dimensional chains via intermolecular N—H...N hydrogen bonds and these chains, in turn, form a two-dimensional network through π–π stacking interactions. In addition, the anions and water molecules are connected into a two-dimensional hydrogen-bonded network through intermolecular O—H...O hydrogen bonds. The two motifs result in sheets of cations and anions stacked alternately.

scholarly journals Crystal structure of poly[μ2-aqua-aqua(μ2-4-nitro-2,5,6-trioxo-1,2,5,6-tetrahydropyridin-3-olato)hemi-μ4-oxalato-barium(II)]

2015 ◽  
Vol 71 (5) ◽  
pp. 459-462 ◽  
Author(s):  
Rusul Alabada ◽  
Olga Kovalchukova ◽  
Irina Polyakova ◽  
Svetlana Strashnova ◽  
Vladimir Sergienko
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Supramolecular Framework ◽  
Screw Axis ◽  
Bond Lengths ◽  
Chelate Rings

In the title coordination polymer, [Ba(C5HN2O6)(C2O4)0.5(H2O)2]n, the tenfold coordination of the Ba centre consists of four O atoms from the two 4-nitro-2,5,6-trioxo-1,2,5,6-tetrahydropyridin-3-olate (L) anions, three O atoms of two oxalate anions and three water molecules. The Ba—O bond lengths fall in the range 2.698 (3)–2.978 (3) Å. TheLligand chelates two Ba atoms related by a screw axis, leading to formation of fused five- and six-membered chelate rings. Due to the bridging function of the ligands and water molecules, the complex monomers are connected into polymeric two-dimensional layers parallel to thebcplane. Intermolecular O—H...O hydrogen bonds link these layers into a three-dimensional supramolecular framework.

Diaquabis(dicyanamido)bis[4-(2-pyridyl)-4H-1,2,4-triazole-κN 1]cobalt(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1479-m1481 ◽  
Author(s):  
Yu-Hong Ma ◽  
Pi-Zhuang Ma ◽  
Huan-Qin Zhu ◽  
Chang-Cheng Liu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Two Dimensional ◽  
Complex Molecules ◽  
Dimensional Network

The title complex, [Co(C2N3)2(C7H6N4)2(H2O)2] or [Co(dca)2(pytrz)2(H2O)2], where pytrz is 4-(2-pyridyl)-4H-1,2,4-triazole and dca is the dicyanamide monoanion, was prepared using pytrz, Na(dca) and CoCl2·6H2O. The CoII atom lies on a center of inversion and is coordinated in a slightly distorted octahderal geometry by two pytrz ligands, two dca ligands and two trans-oriented water molecules. In the crystal structure, complex molecules are linked by O—H...N hydrogen bonds into a two-dimensional network and further into a three-dimensional network via weak C—H...N hydrogen bonds.

scholarly journals Crystal structure and Hirshfeld surface analysis of tris(2,2′-bipyridine)nickel(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide) dihydrate

2019 ◽  
Vol 75 (6) ◽  
pp. 867-871
Author(s):  
Ignacio Chi-Duran ◽  
Zouaoui Setifi ◽  
Fatima Setifi ◽  
Christian Jelsch ◽  
Bernd Morgenstern ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Surface Analysis ◽  
Title Compound ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Racemic Mixture ◽  
Water Molecules ◽  
Monoclinic Space Group ◽  
Two Dimensional

The title compound, [Ni(C10H8N2)3](C9H5N4O)2·2H2O, crystallizes as a racemic mixture in the monoclinic space group C2/c. In the crystal, the 1,1,3,3-tetracyano-2-ethoxypropenide anions and the water molecules are linked by O—H...N hydrogen bonds, forming chains running along the [010] direction. The bpy ligands of the cation are linked to the chain via C—H...π(cation) interactions involving the CH3 group. The intermolecular interactions were investigated by Hirshfeld surface analysis and two-dimensional fingerprint plots.

scholarly journals (NH4)Mg(HSO4)(SO4)(H2O)2 and NaSc(CrO4)2(H2O)2, two crystal structures comprising kröhnkite-type chains, and the temperature-induced phase transition (NH4)Mg(HSO4)(SO4)(H2O)2\rightleftharpoons (NH4)MgH(SO4)2(H2O)2

2021 ◽  
Vol 77 (3) ◽  
pp. 144-151
Author(s):  
Matthias Weil ◽  
Uwe Kolitsch
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Room Temperature ◽  
Classification Scheme ◽  
Three Dimensional ◽  
Structure Type ◽  
Group Symmetry ◽  
Water Molecules

The crystal structure of the mineral kröhnkite, Na2Cu(SO4)2(H2O)2, contains infinite chains composed of [CuO4(OH2)2] octahedra corner-linked with SO4 tetrahedra. Such or similar tetrahedral–octahedral `kröhnkite-type' chains are present in the crystal structures of numerous compounds with the composition AnM(XO4)2(H2O)2. The title compounds, (NH4)Mg(HSO4)(SO4)(H2O)2, ammonium magnesium hydrogen sulfate sulfate dihydrate, and NaSc(CrO4)2(H2O)2, sodium scandium bis(chromate) dihydrate, are members of the large family with such kröhnkite-type chains. At 100 K, (NH4)Mg(HSO4)(SO4)(H2O)2 has an unprecedented triclinic crystal structure and contains [MgO4(OH2)2] octahedra linked by SO3(OH) and SO4 tetrahedra into chains extending parallel to [\overline{1}10]. Adjacent chains are linked by very strong hydrogen bonds between SO3(OH) and SO4 tetrahedra into layers parallel to (111). Ammonium cations and water molecules connect adjacent layers through hydrogen-bonding interactions of medium-to-weak strength into a three-dimensional network. (NH4)Mg(HSO4)(SO4)(H2O)2 shows a reversible phase transition and crystallizes at room temperature in structure type E in the classification scheme for structures with kröhnkite-type chains, with half of the unit-cell volume for the resulting triclinic cell, and with disordered H atoms of the ammonium tetrahedron and the H atom between two symmetry-related sulfate groups. IR spectroscopic room-temperature data for the latter phase are provided. Monoclinic NaSc(CrO4)2(H2O)2 adopts structure type F1 in the classification scheme for structures with kröhnkite-type chains. Here, [ScO4(OH2)2] octahedra (point group symmetry \overline{1}) are linked by CrO4 tetrahedra into chains parallel to [010]. The Na+ cations (site symmetry 2) have a [6 + 2] coordination and connect adjacent chains into a three-dimensional framework that is consolidated by medium–strong hydrogen bonds involving the water molecules. Quantitative structural comparisons are made between NaSc(CrO4)2(H2O)2 and its isotypic NaM(CrO4)2(H2O)2 (M = Al and Fe) analogues.

N-(7-Dimethoxymethyl-4-oxo-3,4-dihydropteridin-2-yl)-2,2-dimethylpropionamide monohydrate

2007 ◽  
Vol 63 (11) ◽  
pp. o4249-o4250
Author(s):  
Hoong-Kun Fun ◽  
Shyamaprosad Goswami ◽  
Annada C. Maity ◽  
Sibaprasad Maity ◽  
Suchada Chantrapromma
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Water Molecules ◽  
Two Dimensional ◽  
Compound C ◽  
The Mean ◽  
Intramolecular Hydrogen ◽  
Ring Motif

In the title compound, C14H19N5O4·H2O, the 3,4-dihydropteridine ring system deviates sigificantly from planarity, the dihedral angle between the mean planes of the two rings being 3.93 (9)°. Intramolecular N—H...O hydrogen bonding generates an S(6) ring motif. The water molecule forms O—H...O and O—H...N intramolecular hydrogen bonds with the substituted pteridine molecule. In the crystal structure, the substituted pteridine molecules are linked by N—H...N hydrogen bonds into chains running along the c direction. These chains are further connected to the water molecules by N—H...O, O—H...O and O—H...N hydrogen bonds to form two-dimensional networks parallel to the bc plane. The crystal structure is stabilized by intra- and intermolecular N—H...O, N—H...N, O—H...O and O—H...N hydrogen bonds, together with weak C—H...O and C—H...N intra- and intermolecular interactions. C—H...π interactions are also observed.

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