scholarly journals Secondary bonding in dimethylbis(morpholine-4-carbodithioato-κ2S,S′)tin(IV): crystal structure and Hirshfeld surface analysis

Author(s):  
Nordiyana Binti Zaldi ◽  
Rusnah Syahila Duali Hussen ◽  
See Mun Lee ◽  
Nathan R. Halcovitch ◽  
Mukesh M. Jotani ◽  
...  

The title compound, [Sn(CH3)2(C5H8NOS2)2], has the SnIVatom bound by two methyl groups which lie over the weaker Sn—S bonds formed by two asymmetrically chelating dithiocarbamate ligands so that the coordination geometry is skew-trapezoidal bipyramidal. The most prominent feature of the molecular packing are secondary Sn...S interactions [Sn...S = 3.5654 (7) Å] that lead to centrosymmetric dimers. These are connected into a three-dimensional architectureviamethylene-C—H...S and methyl-C—H...O(morpholino) interactions. The Sn...S interactions are clearly evident in the Hirshfeld surface analysis of the title compound along with a number of other intermolecular contacts.

2018 ◽  
Vol 9 (4) ◽  
pp. 347-352
Author(s):  
Abdullah Aydin ◽  
Mehmet Akkurt ◽  
Zehra Tugce Gur ◽  
Erden Banoglu

The title compound, C13H12Cl2N2O2, crystallizes with six molecules in the asymmetric unit, such that, the 1H-pyrazole rings are essentially planar. The six molecules are stabilized by intramolecular C-H···N and C-H···Cl interactions and the crystal structure is stabilized by intermolecular C-H···O hydrogen bonds, forming molecular sheets into paralel to the (-1 1 0) plane. These sheets are connected to each other by C-H···O hydrogen bonds and C-H···π interactions. In the Hirshfeld surface analysis, the H···H, Cl···H/H···Cl, C···H/H···C, O···H/H···O, N···H/H···N, Cl···Cl, Cl···O/O···Cl interactions add to 95.8% of the intermolecular contacts of the Hirshfeld surface area. The remaining contributions (2.9%) correspond to Cl···C/C···Cl, C···O/O···C, O···O and N···N interactions. Crystal Data for C13H12Cl2N2O2 (M = 299.15 g/mol): Triclinic, space group P-1 (no. 2), a = 12.0505(10) Å, b = 12.3189(11) Å, c = 29.184(3) Å, α = 88.565(4)°, β = 89.296(4)°, γ = 76.833(4)°, V = 4217.0(7) Å3, Z = 12, T = 296(2) K, μ(MoKα) = 0.460 mm-1, Dcalc = 1.414 g/cm3, 83073 reflections measured (2.8° ≤ 2Θ ≤ 47°), 12426 unique (Rint = 0.0411, Rsigma = 0.0235) which were used in all calculations. The final R1 was 0.0662 (I > 2σ(I)) and wR2 was 0.2481 (all data).


2019 ◽  
Vol 75 (11) ◽  
pp. 1729-1733
Author(s):  
Sevgi Kansiz ◽  
Seher Meral ◽  
Necmi Dege ◽  
Aysen Alaman Agar ◽  
Igor O. Fritsky

In the title complex, [Cu(C18H12F6N2O4)]·0.5C6H6O2, the CuII ion has a square-planar coordination geometry, being ligated by two N and two O atoms of the tetradentate open-chain Schiff base ligand 6,6′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol]. The crystal packing is stabilized by intramolecular O—H...O and intermolecular C—H...F, C—H...O and C—H...π hydrogen bonds. In addition, weak π–π interactions form a three-dimensional structure. Hirshfeld surface analysis and two-dimensional fingerprint plots were performed and created to analyze the intermolecular interactions present in the crystal, indicating that the most important contributions for the crystal packing are from F...H/H...F (25.7%), H...H (23.5%) and C...H/H...C (12.6%) interactions.


2017 ◽  
Vol 73 (9) ◽  
pp. 1363-1367
Author(s):  
Wannur Sofiasalamah Khairiah A. Rahman ◽  
J. Ahmad ◽  
Siti Nadiah Abdul Halim ◽  
Mukesh M. Jotani ◽  
Edward R. T. Tiekink

The full molecule of the binuclear title compound, [Cd2Cl2(C6H8O4)(C6H8N2)2(H2O)2], is generated by the application of a centre of inversion located at the middle of the central CH2—CH2bond of the adipate dianion; the latter chelates a CdIIatom at each end. Along with two carboxylate-O atoms, the CdIIion is coordinated by the two N atoms of the chelating benzene-1,2-diamine ligand, a Cl−anion and an aqua ligand to define a distorted octahedral CdClN2O3coordination geometry with the monodentate ligands being mutuallycis. The disparity in the Cd—N bond lengths is related to the relativetranseffect exerted by the Cd—O bonds formed by the carboxylate-O and aqua-O atoms. The packing features water-O—H...O(carboxylate) and benzene-1,2-diamine-N—H...Cl hydrogen bonds, leading to layers that stack along thea-axis direction. The lack of directional interactions between the layers is confirmed by a Hirshfeld surface analysis.


2020 ◽  
Vol 76 (9) ◽  
pp. 1535-1538
Author(s):  
M. Renugadevi ◽  
A. Sinthiya ◽  
Kumaradhas Poomani ◽  
Suganya Suresh

In the crystals of the title compound, C5H7N2 +·CNS−·C5H6N2, the components are linked by three N—H...N and two N—H...S hydrogen bonds, resulting in two interpenetrating three-dimensional networks. Hirshfeld surface analysis shows that the most important contributions to the crystal packing are from H...H (36.6%), C...H/H...C (20.4%), S...H/H...S (19.7%) and N...H/H...N (13.4%) interactions.


Author(s):  
Sevim Türktekin Çelikesir ◽  
S. N. Sheshadri ◽  
Mehmet Akkurt ◽  
C. S. Chidan Kumar ◽  
M. K. Veeraiah

The molecular structure of the title compound, C17H14ClFO3, consists of a 4-chloro-3-fluorophenyl ring and a 3,4-dimethoxyphenyl ring linked via a prop-2-en-1-one spacer. The molecule has an E configuration about the C=C bond and the carbonyl group is syn with respect to the C=C bond. The F and H atoms at the meta positions of the 4-chloro-3-fluorophenyl ring are disordered over two orientations, with an occupancy ratio of 0.785 (3):0.215 (3). In the crystal, molecules are linked via pairs of C—H...O interactions with an R 2 2(14) ring motif, forming inversion dimers. The dimers are linked into a tape structure running along [10\overline{1}] by a C—H...π interaction. The intermolecular contacts in the crystal were further analysed using Hirshfield surface analysis, which indicates that the most significant contacts are H...H (25.0%), followed by C...H/H...C (20.6%), O...H/H...O (15.6%), Cl...H/H...Cl (10.7%), F...H/H...F (10.4%), F...C/C...F (7.2%) and C...C (3.0%).


Author(s):  
Amzar Ahlami Abdullah ◽  
Nur Hafiq Hanif Hassan ◽  
Suhana Arshad ◽  
Nuridayanti Che Khalib ◽  
Ibrahim Abdul Razak

In the title compound, C23H14ClFO, the enone moiety adopts anEconformation. The dihedral angle between the benzene and anthracene ring is 63.42 (8)° and an intramolecular C—H...F hydrogen bond generates anS(6) ring motif. In the crystal, molecules are arranged into centrosymmetric dimersviapairs of C—H...F hydrogen bonds. The crystal structure also features C—H...π and π–π interactions. Hirshfeld surface analysis was used to confirm the existence of intermolecular interactions.


2017 ◽  
Vol 73 (10) ◽  
pp. 1458-1464 ◽  
Author(s):  
Grant A. Broker ◽  
Mukesh M. Jotani ◽  
Edward R. T. Tiekink

In the title compound, [Zn(C4H8NOS2)2(C12H10N4)], the ZnIIatom exists within a NS4donor set defined by two chelating dithiocarbamate ligands and a pyridyl-Natom derived from a terminally bound 4-pyridinealdazine ligand. The distorted coordination geometry tends towards square-pyramidal with the pyridyl-N atom occupying the apical position. In the crystal, hydroxyl-O—H...O(hydroxyl) and hydroxyl-O—H...N(pyridyl) hydrogen-bonding give rise to a supramolecular double-chain along [1-10]; methyl-C—H...π(chelate ring) interactions help to consolidate the chain. The chains are connected into a three-dimensional architectureviapyridyl-C—H...O(hydroxyl) interactions. In addition to the contacts mentioned above, the Hirshfeld surface analysis points to the significance of relatively weak π–π interactions between pyridyl rings [inter-centroid distance = 3.901 (3) Å].


Author(s):  
Nur Adibah Binti Mohd Amin ◽  
Rusnah Syahila Duali Hussen ◽  
See Mun Lee ◽  
Nathan R. Halcovitch ◽  
Mukesh M. Jotani ◽  
...  

The SnIVatom in the title diorganotin compound, [Sn(C7H6F)2Cl2(C2H6OS)2], is located on a centre of inversion, resulting in the C2Cl2O2donor set having an all-transdisposition of like atoms. The coordination geometry approximates an octahedron. The crystal features C—H...F, C—H...Cl and C—H...π interactions, giving rise to a three-dimensional network. The respective influences of the Cl...H/H...Cl and F...H/H...F contacts to the molecular packing are clearly evident from the analysis of the Hirshfeld surface.


Author(s):  
Mustafa Kemal Gumus ◽  
Fatih Sen ◽  
Sevgi Kansiz ◽  
Necmi Dege ◽  
Eiad Saif

The title compound, C13H14N4O, was developed using the reaction of salicylaldehyde and 3-amino-5-cyclobutyl-1,2,4-triazole in ethanol under microwave irradiation. This eco-friendly microwave-promoted method proved to be efficient in the synthesis of 2-{[(E)-(3-cyclobutyl-1H-1,2,4-triazol-5-yl)imino]methyl}phenol in good yields and purity. The title compound is a Schiff base that exists in the phenol–imine tautomeric form and adopts an E configuration. The three independent molecules in the asymmetric unit (A, B and C) are not planar, the cyclobutyl and the phenol-imine rings are twisted to each other making a dihedral angle of 67.8 (4)° in molecule A, 69.1 (2)° in molecule B and 89.1 (2)° in molecule C. In each molecule an intramolecular O—H...N hydrogen bond is present, forming an S(6) ring motif. A Hirshfeld surface analysis was performed to investigate the contributions of the different intermolecular contacts within the supramolecular structure. The major interactions are H...H (53%), C...H (19%) and N...H (17%) for molecule A, H...H (50%), N...H (20%) and C...H (20%) for molecule B and H...H (57%), C...H (14%) and N...H (13%) for molecule C.


2016 ◽  
Vol 72 (8) ◽  
pp. 1085-1092 ◽  
Author(s):  
Mukesh M. Jotani ◽  
Pavel Poplaukhin ◽  
Hadi D. Arman ◽  
Edward R. T. Tiekink

The asymmetric unit of the title compound, [Cd2(C12H10N2)3(C6H12NOS2)4]·4C2H3N, comprises a CdIIatom, two dithiocarbamate (dtc) anions, one and a halftrans-1,2-dipyridin-4-ylethylene (bpe) molecules and two acetonitrile solvent molecules. The full binuclear complex is generated by the application of a centre of inversion. The dtc ligands are chelating, one bpe molecule coordinates in a monodentate mode while the other is bidentate bridging. The resultingcis-N2S4coordination geometry is based on an octahedron. Supramolecular layers, sustained by hydroxy-O—H...O(hydroxy) and hydroxy-O—H...N(bpe) hydrogen bonding, interpenetrate to form a three-dimensional architecture; voids in this arrangement are occupied by the acetonitrile solvent molecules. Additional intermolecular interactions falling within the specified framework have been analysed by Hirshfeld surface analysis, including π–π interactions.


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