scholarly journals Three salts from the reactions of cysteamine and cystamine withL-(+)-tartaric acid

2013 ◽  
Vol 69 (6) ◽  
pp. 658-664 ◽  
Author(s):  
Amina Benylles ◽  
Donald Cairns ◽  
Philip J. Cox ◽  
Graeme Kay
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Tartaric Acid ◽  
Three Dimensional ◽  
Water Molecules ◽  
Amino Groups ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
Hydrogen Bonding Networks

Reaction between cysteamine (systematic name: 2-aminoethanethiol, C2H7NS) and L-(+)-tartaric acid [systematic name: (2R,3R)-2,3-dihydroxybutanedioic acid, C4H6O6] results in a mixture of cysteamine tartrate(1−) monohydrate, C2H8NS+·C4H5O6−·H2O, (I), and cystamine bis[tartrate(1−)] dihydrate, C4H14N2S22+·2C4H5O6−·2H2O, (III). Cystamine [systematic name: 2,2′-dithiobis(ethylamine), C4H12N2S2], reacts with L-(+)-tartaric acid to produce a mixture of cystamine tartrate(2−), C4H14N2S22+·C4H4O62−, (II), and (III). In each crystal structure, the anions are linked by O—H...O hydrogen bonds that run parallel to theaaxis. In addition, hydrogen bonding involving protonated amino groups in all three salts, and water molecules in (I) and (III), leads to extensive three-dimensional hydrogen-bonding networks. All three salts crystallize in the orthorhombic space groupP212121.

scholarly journals Crystal structure and hydrogen bonding in the water-stabilized proton-transfer salt brucinium 4-aminophenylarsonate tetrahydrate

2016 ◽  
Vol 72 (5) ◽  
pp. 751-755 ◽  
Author(s):  
Graham Smith ◽  
Urs D. Wermuth
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Proton Transfer ◽  
Network Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Arsanilic Acid ◽  
Dimensional Network

In the structure of the brucinium salt of 4-aminophenylarsonic acid (p-arsanilic acid), systematically 2,3-dimethoxy-10-oxostrychnidinium 4-aminophenylarsonate tetrahydrate, (C23H27N2O4)[As(C6H7N)O2(OH)]·4H2O, the brucinium cations form the characteristic undulating and overlapping head-to-tail layered brucine substructures packed along [010]. The arsanilate anions and the water molecules of solvation are accommodated between the layers and are linked to them through a primary cation N—H...O(anion) hydrogen bond, as well as through water O—H...O hydrogen bonds to brucinium and arsanilate ions as well as bridging water O-atom acceptors, giving an overall three-dimensional network structure.

The First Ammoniates of Alkali Metal Fluorides: Cesium Fluoride Ammonia (3/4) [Cs3F3(NH3)4] and Ammonium Cesium Difluoride [NH4CsF2]

2010 ◽  
Vol 65 (10) ◽  
pp. 1177-1184 ◽  
Author(s):  
Sebastian A. Baer ◽  
Florian Kraus
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Alkali Metal ◽  
Three Dimensional ◽  
Structural Motif ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
Metal Fluorides ◽  
Group I ◽  
Cesium Fluoride

Two new compounds containing cesium fluoride have been obtained as side-products from the reactions of Cs2CuF6 and Cs2KDyF6 with liquid ammonia. Cs2CuF6 reacts with the solvent forming a still unknown blue substance and the colorless ammoniate Cs3F3(NH3)4 which crystallizes in the cubic space group I 4̄3d (no. 220) with a = 10.273(1) Å and V = 1084.3(2) Å3 at 123 K with Z = 4. Its crystal structure is isopointal to Y3Au3Sb4 and shows an infinite three-dimensional network made up through N-H· · ·F hydrogen bonds. Ammonium cesium difluoride NH4CsF2 crystallizes in the orthorhombic space group Pnma (no. 62) with a = 7.1791(1), b = 4.1244(1), c = 13.6417(2) Å and V = 403.92(1) Å3 at 123 K with Z = 4. The crystal structure displays two-dimensional infinite layers of the composition 2 ∞[(NH4F2)−] with embedded Cs+ ions. Analogous to the structure of the compound Cs3F3(NH3)4, the structural motif is formed through strong N-H· · ·F hydrogen bonds, which seem to be the guiding force. To the best of our knowledge, the title compounds are the first reported ammoniates of alkali metal fluorides.

Bis(adeninium) chloranilate dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. o4433-o4433 ◽  
Author(s):  
Kazuma Gotoh ◽  
Rie Ishikawa ◽  
Hiroyuki Ishida
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Hydrogen Bonding Network

In the crystal structure of the title compound, 2C5H6N5 +·C6Cl2O4 2−·2H2O, two adeninium cations, one chloranilate dianion and two water molecules are held together by O—H...O, N—H...O, O—H...Cl and C—H...O hydrogen bonds, forming a centrosymmetric unit. The chloranilate dianion resides on an inversion centre. The anion and two cations are approximately coplanar, the dihedral angle between the planes of the adeninium cation and the chloranilate dianion being 3.25 (3)°. The crystal structure is stabilized by inter-unit N—H...N, N—H...O, N—H...Cl and O—H...N hydrogen bonds, forming a three-dimensional hydrogen-bonding network.

scholarly journals Bis(2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)nickel(II) bis(perchlorate) hemihydrate

IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
Carolin Anderer ◽  
Christian Näther ◽  
Wolfgang Bensch
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Three Dimensional ◽  
Water Molecules ◽  
Cationic Complex ◽  
Terpyridine Ligands ◽  
Atom Position ◽  
Discrete Complex

In the title compound, [Ni(C15H11N3)2](ClO4)2·0.5H2O, the Ni2+cation is coordinated by two terpyridine ligands to form a discrete complex and the coordination polyhedron can be described as a slightly distorted octahedron. It crystallizes as a hemihydrate with two perchlorate anions to compensate the charges. In the crystal, one of the two crystallographically independent perchlorate anions is involved in O—H...O hydrogen bonding to the water molecules, where two inversion-related water molecules link two inversion-related perchlorate anions into a ring with anR42(12) loop. The O-atom position of the water molecule is only half occupied,i.e.only half of the anions are involved in hydrogen bonding. A similar arrangement of two anions is also observed for the second crystallographically independent perchlorate anion but no water molecules are located between the anions. The cationic complex and the perchlorate anions are additionally linked by a number of weak C—H...O hydrogen bonds, forming a three-dimensional supramolecular structure. The crystal structure of the monohydrate of the same complex has been reported [Bakeret al.(1995).Aust. J. Chem.48, 1373–1378].

scholarly journals Redetermination of nickel(II) formate dihydrate

IUCrData ◽  
2018 ◽  
Vol 3 (3) ◽  
Author(s):  
Matthias Weil
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Structure Determination ◽  
Three Dimensional ◽  
The Other ◽  
Water Molecules ◽  
Hydrogen Bonding Pattern ◽  
Medium Strength

In comparison with the previous structure determination of poly[diaquadi-μ-formato-nickel(II)], [Ni(HCOO)2(H2O)2]n, based on Weissenberg film data [Krogmann & Mattes (1963).Z. Kristallogr.118, 291–302], the current redetermination from modern CCD data revealed the positions of the H atoms, thus making a detailed description of the hydrogen-bonding pattern possible. Both Ni2+cations in the crystal structure are located on inversion centres and are octahedrally coordinated. One Ni2+cation is bound to six O atoms of six formate anions whereas the other Ni2+cation is bound to four O atoms of water molecules and to two formate O atoms. In this way, the formate anions bridge the two types of Ni2+cations into a three-dimensional framework. O—H...O hydrogen bonds of medium strength between water molecules and formate O atoms consolidate the packing.

scholarly journals Crystal structure of 2-amino-4-methylpyridin-1-ium (2R,3R)-3-carboxy-2,3-dihydroxypropanoate monohydrate

2014 ◽  
Vol 70 (9) ◽  
pp. o1036-o1037 ◽  
Author(s):  
J. V. Jovita ◽  
S. Sathya ◽  
G. Usha ◽  
R. Vasanthi ◽  
A. Ramanand
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Tartaric Acid ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Bond Forming ◽  
Molecular Salt

The title molecular salt, C6H9N2+·C4H5O6−·H2O, crystallized with two 2-amino-4-methylpyridin-1-ium cations, two L-(+)-tartaric acid monoanions [systematic name: (2R,3R)-3-carboxy-2,3-dihydroxypropanoate] and two water molecules in the asymmetric unit. In the crystal, the cations, anions and water molecules are linkedviaa number of O—H...O and N—H...O hydrogen bonds, and a C—H...O hydrogen bond, forming a three-dimensional structure

scholarly journals Tetraammonium bis(metforminium) di-μ6-oxido-tetra-μ3-oxido-tetradeca-μ2-oxido-octaoxidodecavanadium(V) hexahydrate

IUCrData ◽  
2021 ◽  
Vol 6 (6) ◽  
Author(s):  
J. Alberto Polito-Lucas ◽  
José A. Núñez-Ávila ◽  
Sylvain Bernès ◽  
Aarón Pérez-Benítez
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Intermolecular Hydrogen Bonds ◽  
Space Group ◽  
Dimensional Network ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The title compound, (NH4)4(C4H12N5)2[V10O28]·6H2O, crystallizes with the decavanadate anion placed on an inversion centre in space group P\overline{1}. This anion is surrounded by a first shell of ammonium cations and water molecules, forming efficient N—H...O and O—H...O hydrogen bonds. A second shell includes metforminium monocations with a twisted geometry, also forming numerous intermolecular hydrogen bonds. The complex three-dimensional network of non-covalent interactions affords a crystal structure in which the cations and anions are densely packed.

scholarly journals Crystal structure of bis(1,3-diaminopropane-κ2N,N′)bis[2-(4-nitrophenyl)acetato-κO]cadmium

2016 ◽  
Vol 72 (2) ◽  
pp. 226-228
Author(s):  
Ian M. Rahn ◽  
Carlos L. Crawford ◽  
Zerihun Assefa ◽  
Jeffery Hendrich ◽  
Richard E. Sykora
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Network Structure ◽  
Layered Structure ◽  
Three Dimensional ◽  
Amino Groups ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network

In the structure of the title compound, [Cd(C8H6NO4)2(C3H10N2)2], the CdIIatom is located on a center of symmetry with one independent Cd—O distance of 2.3547 (17) Å and two Cd—N distances of 2.3265 (18) and 2.3449 (19) Å. The CdIIatom has an overall octahedral coordination environment. Several types of hydrogen-bonding interactions are evident. Both intra- and intermolecular interactions occur between the amino groups and the O atoms of the acetate group. These N—H...O hydrogen bonds lead to a layered structure extending parallel to thebcplane. In addition, weak intermolecular C—H...O interactions involving the nitro groups exist, leading to the formation of a three-dimensional network structure.

Thomsenolite, NaCaAlF6•H2O: hydrogen bonding and comparison with pachnolite

1985 ◽  
Vol 63 (12) ◽  
pp. 3322-3327 ◽  
Author(s):  
D. Adhikesavalu ◽  
T. Stanley Cameron ◽  
Osvald Knop
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Detailed Comparison ◽  
Water Molecules ◽  
Two Dimensional ◽  
Hydrogen Atoms ◽  
Hydrogen Bonding Network ◽  
Bonding Scheme

The crystal structure of thomsenolite, NaCaAlF6•H2O, has been redetermined to establish the hydrogen-bonding scheme in this mineral. Both hydrogen atoms participate in branched [Formula: see text] bonds. The hydrogen bonds link the AlF6, octahedra to form infinite chains ||b, which in turn are cross-linked to form infinite double sheets {[AlF6] + Ca}—(H2O)—{[AlF6] + Ca}||(001). The Na atoms are located exclusively in layers ||(001) which separate the double sheets. A detailed comparison of thomsenolite with its dimorph, pachnolite, shows that the structure of pachnolite is obtained in essence by interchanging the positions of one half of the Na atoms and one half of the water molecules in thomsenolite. The two-dimensional, layerlike hydrogen-bonding network in thomsenolite is thereby changed to one of a three-dimensional character in pachnolite. Other features of the two structures, including the Al—F and [Formula: see text] distances, are compared and discussed in some detail.

scholarly journals Zur Kenntnis von Be[C2(COO)2] · 4 H2O — Ein durch starke Wasserstoffbrückenbindungen stabilisiertes anorganisches Derivat der Acetylendicarbonsäure / On Be[C2(COO)2] · 4 H2O — An Inorganic Derivative of Acetylenedicarboxylic Acid Stabilized by Strong Hydrogen Bonding

1990 ◽  
Vol 45 (11) ◽  
pp. 1499-1502 ◽  
Author(s):  
Christian Robl ◽  
Stephanie Hentschel
Keyword(s):  
Crystal Structure ◽  
Thermal Decomposition ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Single Crystals ◽  
Three Dimensional ◽  
Bound Water ◽  
Water Molecules ◽  
Acetylenedicarboxylic Acid ◽  
Hydrogen Bound

Colorless orthorhombic single crystals of Be[C2(COO)2] · 4 H2O were grown in aqueous silica gel. Space group Cmcm, α = 1004.7(1), b = 675.0(1), c = 1262.4(2) pm, Rg = 0.0264. The crystal structure consists of Be(H2O)42+ tetrahedra and planar [C2(COO)2]2- anions linked together by strong asymmetric hydrogen bonds. A layer-like arrangement extending parallel (010) made up by [C2(COO)2]2- anions and hydrogen bound water molecules of the Be(H2O)42+ tetrahedra is the primary structural feature of Be[C2(COO)2] · 4H2O. These layers are stacked and interlinked by coordinative bonds between Be2+ and H2O to yield a rigid three-dimensional framework. Thermal decomposition commences with endothermic loss of water of crystallisation at 160 °C followed by several steps of exothermic degradation yielding finally a soot-like amorphous residue.

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