scholarly journals fac-Bis[bis(pyridin-2-yl)methanamine]iron(II) bis(1,1,3,3-tetracyano-2-ethoxypropenide) dihydrate

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
Zouaoui Setifi ◽  
Sylvain Bernès ◽  
Fatima Setifi ◽  
Manpreet Kaur ◽  
Jerry P. Jasinski

The hydrated complex [Fe(DIPA)2](tcnoet)2·2H2O [DIPA is bis(pyridin-2-yl)methanamine, C11H11N3, and tcnoet is the anion 1,1,3,3-tetracyano-2-ethoxypropenide, C9H5N4O−], crystallizes with the [Fe(DIPA)2]2+ cation located on an inversion centre. The coordination geometry for FeII is strongly distorted from octahedral, as a consequence of the bite angles formed by the tridentate DIPA ligand. The water molecules included in the voids left by the cations and anions form hydrogen bonds with the cyano and amine groups.

2018 ◽  
Vol 74 (9) ◽  
pp. 1295-1298
Author(s):  
Jan Fábry

Two of the constituent molecules in the title structure, 2C6H7N2O+·HPO3 2−·H2O, i.e. the phosphite anion and the water molecule, are situated on a symmetry plane. The molecules are held together by moderate N—H...O and O—H...N, and weak O—H...O and C—H...Ocarbonyl hydrogen bonds in which the amide and secondary amine groups, and the water molecules are involved. The structural features are usual, among them the H atom bonded to the P atom avoids hydrogen bonding.


2015 ◽  
Vol 71 (9) ◽  
pp. m162-m163
Author(s):  
Siddhartha S. Baisya ◽  
Baidyanath Ghosh ◽  
Parag S. Roy

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnIIatom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.16 (5)°]. Classical N—H...O, O—H...N and O—H...O hydrogen bonds and weak C—H...O hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional network. π–π stacking contacts are observed as well, with centroid-to-centroid distances of 3.5679 (14), 3.7004 (14), 3.6641 (15), 3.6974 (13) and 3.3412 (12) Å.


2012 ◽  
Vol 68 (6) ◽  
pp. m847-m848
Author(s):  
Mei Zhang ◽  
Fu-Yu Sun ◽  
Gui-Zhe Zhao ◽  
Ya-Qing Liu

In the dinuclear title compound, [Na2(C13H15ClN5O5S)2(H2O)6] n , two Na+ cations, disposed about a centre of inversion, are linked by two bridging water molecules. The coordination geometry is based on an O5 donor set defined by four water molecules and a 4-aminobenzenesulfonate O atom in a distorted trigonal–bipyramidal geometry. In the crystal, significant O—H...O, O—H...N and N—H...O hydrogen bonds lead to the formation of a three-dimensional architecture.


2014 ◽  
Vol 70 (6) ◽  
pp. 562-565 ◽  
Author(s):  
Wei Zhang ◽  
Yu-Quan Feng

A novel dinuclear bismuth(III) coordination compound, [Bi2(C7H3NO4)2(N3)2(C12H8N2)2]·4H2O, has been synthesized by an ionothermal method and characterized by elemental analysis, energy-dispersive X-ray spectroscopy, IR, X-ray photoelectron spectroscopy and single-crystal X-ray diffraction. The molecular structure consists of one centrosymmetric dinuclear neutral fragment and four water molecules. Within the dinuclear fragment, each BiIIIcentre is seven-coordinated by three O atoms and four N atoms. The coordination geometry of each BiIIIatom is distorted pentagonal–bipyramidal (BiO3N4), with one azide N atom and one bridging carboxylate O atom located in axial positions. The carboxylate O atoms and water molecules are assembledviaO—H...O hydrogen bonds, resulting in the formation of a three-dimensional supramolecular structure. Two types of π–π stacking interactions are found, with centroid-to-centroid distances of 3.461 (4) and 3.641 (4) Å.


IUCrData ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Naouel Makouf ◽  
Aziza Chouiter ◽  
Henia Bouzidi Mousser ◽  
Amel Djedouani ◽  
Solenne Fleutot ◽  
...  

In the mononuclear title complex, [Co(C10H6NO4)2(C7H10N2)2(H2O)2], the CoII ion is located on an inversion centre and has a distorted octahedral coordination geometry of type CoN2O4 by two N atoms from the two 4-(dimethylamino)pyridine (DMAP) ligands, two carboxylate O atoms from the two deprotonated N-phthaloylglycine (Nphgly) ligands [systematic name: 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)acetate] and two coordination water molecules. In the crystal, O—H...O, C—H...O hydrogen bonds and π–π stacking interactions link the molecules into the supramolecular structure.


Author(s):  
Sabina Yasmin ◽  
Saswata Rabi ◽  
Avijit Chakraborty ◽  
Huey Chong Kwong ◽  
Edward R. T. Tiekink ◽  
...  

The title CuII macrocyclic complex salt tetrahydrate, [Cu(C22H46N6O2)](C2H3O2)2·4H2O, sees the metal atom located on a centre of inversion and coordinated within a 4 + 2 (N4O2) tetragonally distorted coordination geometry; the N atoms are derived from the macrocycle and the O atoms from weakly associated [3.2048 (15) Å] acetate anions. Further stability to the three-ion aggregate is provided by intramolecular amine-N—H...O(carboxylate) hydrogen bonds. Hydrogen bonding is also prominent in the molecular packing with amide-N—H...O(amide) interactions, leading to eight-membered {...HNCO}2 synthons, amide-N—H...O(water), water-O—H...O(carboxylate) and water-O—H...O(water) hydrogen bonds featuring within the three-dimensional architecture. The calculated Hirshfeld surfaces for the individual components of the asymmetric unit differentiate the water molecules owing to their distinctive supramolecular association. For each of the anion and cation, H...H contacts predominate (50.7 and 65.2%, respectively) followed by H...O/O...H contacts (44.5 and 29.9%, respectively).


2012 ◽  
Vol 68 (6) ◽  
pp. m777-m778 ◽  
Author(s):  
Ying Wang ◽  
Rui Jiao ◽  
Xiang-Lei Qiu ◽  
Jian Wang ◽  
Wei Huang

In the cation of the title compound, [Ru(C15H10ClN3)2]Cl2·2H2O, the metal atom exhibits a distorted octahedral coordination geometry provided by the N atoms of two tridentate terpyridine ligands. The ligands are approximately planar [maximum deviation = 0.156 (5) Å] and form a dihedral angle of 87.0 (3)°. In the crystal, the cations, anions and water molecules are linked into a three-dimensional network by C—H...Cl, C—H...O and O—H...Cl hydrogen bonds.


1985 ◽  
Vol 40 (12) ◽  
pp. 1622-1625 ◽  
Author(s):  
W. S. Sheldrick ◽  
H.-J. Häusler

Abstract K3HAs2O5-6H2O 1 has been crystallised from aqueous solution and its crystal structure established by X-ray analysis. 1 contains isolated hydrogendiarsenite anions HAs2O53-, composed of two corner-sharing ψ -AsO3-tetrahedra. The anion displays the semi-eclipsed conformation in which the lone-pairs on the As atoms take up a syn-position with respect to an As-O bond on the opposite As atom. As a result the pyramidal coordination geometry of the As atoms is considerably distorted. The HAs2O53- anions in the crystal lattice are linked via O - H ··· O hydrogen bonds into infinite chains parallel to the b-axis, which are surrounded by water molecules of crystallisation


Author(s):  
Chihiro Kachi-Terajima ◽  
Norihisa Kimura

The title lanthanide complexes, [Ln(DAPBH2)(CH3OH)(H2O)3]Cl3·2CH3OH [Ln III = Tb and Dy; DAPBH2 = 2,6-diacetylpyridine bis(benzoylhydrazone), C23H21N5O2], are isotypic. The central lanthanide ions are nine-coordinate, being ligated by three N and two O atoms from the pentadentate DAPBH2 ligand, and four O atoms from the coordinated methanol molecule and three coordinated water molecules. The coordination geometry of the lanthanide ion is a distorted capped square antiprism. In the crystals, the various components are linked by O—H...Cl, N—H...Cl and O—H...O hydrogen bonds, forming three-dimensional supramolecular frameworks. Within the frameworks, there are C—H...Cl and C—H...O hydrogen bonds and offset π–π interactions (intercentroid distance ca 3.81 Å).


2018 ◽  
Vol 74 (10) ◽  
pp. 1128-1132 ◽  
Author(s):  
Yan-Ju Liu ◽  
Di Cheng ◽  
Ya-Xue Li ◽  
Jun-Di Zhang ◽  
Huai-Xia Yang

Imidazole-4,5-dicarboxylic acid (H3IDC) and its derivatives are widely used in the preparation of new coordination polymers owing to their versatile bridging coordination modes and potential hydrogen-bonding donors and acceptors. A new one-dimensional coordination polymer, namely catena-poly[[diaquacadmium(II)]-μ3-2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylato)], [Cd(C16H6N4O8)0.5(H2O)2] n or [Cd(H2Phbidc)1/2(H2O)2] n , has been synthesized by the reaction of Cd(OAc)2·2H2O (OAc is acetate) with 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylic acid) (H6Phbidc) under solvothermal conditions. In the polymer, one type of Cd ion (Cd1) is six-coordinated by two N atoms and two O atoms from one H2Phbidc4− ligand and by two O atoms from two water molecules, forming a significantly distorted octahedral CdN2O4 coordination geometry. In contrast, the other type of Cd ion (Cd2) is six-coordinated by two N atoms and two O atoms from two symmetry-related H2Phbidc4− ligands and by two O atoms from two symmetry-related water molecules, leading to a more regular octahedral coordination geometry. The Cd1 and Cd2 ions are linked by H2Phbidc4− ligands into a one-dimensional chain which runs parallel to the b axis. In the crystal, the one-dimensional chains are connected through hydrogen bonds, generating a two-dimensional layered structure parallel to the ab plane. Adjacent layers are further linked by hydrogen bonds, forming a three-dimensional structure in the solid state.


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