Results 41 to 50 of about 84,584 (328)

Halogen bonding stabilizes a cis-azobenzene derivative in the solid state: A crystallographic study [PDF]

, 2017
Crystals of trans- and cis-isomers of a fluorinated azobenzene derivative have been prepared and characterized by single-crystal X-ray diffraction. The presence of F atoms on the aromatic core of the azobenzene increases the lifetime of the metastable ...
Fernandez-Palacio F., Metrangolo P., Priimagi A., Resnati G., Saccone M., Siiskonen A., Terraneo G.   +6 more
core   +1 more source

Coordination networks incorporating halogen-bond donor sites and azobenzene groups [PDF]

, 2016
Two Zn coordination networks, [Zn(1)(Py)2]2(2-propanol)n (3) and [Zn(1)2(Bipy)2](DMF)2n (4), incorporating halogen-bond (XB) donor sites and azobenzene groups have been synthesized and fully characterized.
Fernandez-Palacio F., Metrangolo P., Pilati T., Priimagi A., Resnati G., Saccone M., Terraneo G.   +6 more
core   +1 more source

Phosphine Oxides as Spectroscopic Halogen Bond Descriptors: IR and NMR Correlations with Interatomic Distances and Complexation Energy

Molecules, 2020
An extensive series of 128 halogen-bonded complexes formed by trimethylphosphine oxide and various F-, Cl-, Br-, I- and At-containing molecules, ranging in energy from 0 to 124 kJ/mol, is studied by DFT calculations in vacuum.
Alexei S. Ostras’, Daniil M. Ivanov, Alexander S. Novikov, Peter M. Tolstoy   +3 more
doaj   +1 more source

Comparison of Shear Bond Strengths of Orthodontic Brackets Bonded with Three Different Curing Techniques

Turkish Journal of Orthodontics, 2005
The aim of our study was to compare shear bond strengths of orthodontic brackets bonded with chemically cured, halogen light cured and LED cured adhesive systems. 45 extracted human premolar teeth were randomly divided into 3 groups.
Hakan Türkkahraman, Cenker Küçükeşmen   +1 more
doaj   +1 more source

Transmembrane anion transport mediated by halogen-bond donors [PDF]

, 2012
In biology and chemistry, the transport of anions across lipid bilayer membranes is usually achieved by sophisticated supramolecular architectures. Significant size reduction of transporters is hampered by the intrinsically hydrophilic nature of typical ...
A.Vargas Jentzsch, D. Emery, G. Resnati, J. Mareda, N. Sakai, P. Metrangolo, S. K. Nayak, S. Matile   +7 more
core   +2 more sources

Crystal structure of tetrabutylammonium bromide–1,2-diiodo-3,4,5,6-tetrafluorobenzene–dichloromethane (2/2/1)

Acta Crystallographica Section E: Crystallographic Communications, 2015
The crystallization of a 1:1 molar solution of 1,2-diiodo-3,4,5,6-tetrafluorobenzene (o-DITFB) and tetrabutylammonium bromide (n-Bu4NBr) from dichloromethane yielded pure white crystals of a halogen-bonded compound, C16H36N+·Br−·C6F4I2·0.5CH2Cl2 or [(n ...
Jasmine Viger-Gravel, Ilia Korobkov, David L. Bryce   +2 more
doaj   +1 more source

A theoretical simulation of the resonant Raman spectroscopy of the H2O⋯Cl2 and H2O⋯Br2 halogen-bonded complexes [PDF]

, 2016
The resonant Raman spectra of the H2O⋯Cl2 and H2O⋯Br2 halogen-bonded complexes have been studied in the framework of a 2-dimensional model previously used in the simulation of their UV-visible absorption spectra using time-dependent techniques.
Janda K. C., Jesús Rubayo-Soneira, Kenneth C. Janda, Nadine Halberstadt, Press W. H., Ricardo Franklin-Mergarejo, Tannor D. J., V. Ara Apkarian   +7 more
core   +2 more sources

Interplay between N∙∙∙H, N∙∙∙X and π∙∙∙X interactions in the complex pairing of pyrazine with hypohalous acids: A NBO and QTAIM (quantum theory of atoms in molecules) analysis

Bulletin of the Chemical Society of Ethiopia, 2017
The theoretical calculations of the complexes formed by pyrazine (PZ) with hypohalous acids (HOX; X= F, Cl, Br and I) have been carried out at the MP2/6-311++G(2d,2p) computational level.
A. Zabardasti, Y. A. Tyula, H. Goudarziafshar   +2 more
doaj   +1 more source

A high-resolution infrared spectroscopic investigation of the halogen atom-HCN entrance channel complexes solvated in superfluid helium droplets [PDF]

, 2006
Rotationally resolved infrared spectra are reported for the X-HCN (X = Cl, Br, I) binary complexes solvated in helium nanodroplets. These results are directly compared with that obtained previously for the corresponding X-HF complexes [J. M.
Balakrishnan, Boltnev, Boltnev, Boys, Brink, Brown, Brown, Cacace, Chase, Jr, Chen, Choi, Curtiss, de Juan, Decker, Deskevich, Douberly, Douberly, Draeger, Fishchuk, Fishchuk, Fishchuk, Frosh, Frost, Goldschleger, Gordon, Gordon, Gordon, Gordon, Harding, Harren, Heaven, Hinds, Hunt, Hunt, Hutson, Jaccarino, Jeremy M. Merritt, Jochen Küpper, Klos, Klos, Knuth, Kreher, Kreher, Küpper, Lefebvre-Brion, Legon, Legon, LeRoy, Lester, Madeja, Maierle, McInnis, Merritt, Merritt, Merritt, Merritt, Merritt, Metz, Meuwly, Meuwly, Misochko, Nauta, Nauta, Nauta, Nauta, Nauta, Nicklass, Peterson, Pfeiffer, Rode, Roger E. Miller, Rudić, Sims, Skouteris, Stienkemeier, Tao, Towsend, Troya, Vissers, von Haeften, Weck, Werner, Zdanska, Zeimen, Zeimen, Zhang   +85 more
core   +3 more sources

Halogen-Bonded Photoresponsive Materials

, 2014
The aim of the present review is to illustrate to the reader the state of the art on the construction of supramolecular azobenzene-containing materials formed by halogen bonding. These materials include several examples of polymeric, liquid crystalline or crystalline species whose performances are either superior to the corresponding performances of ...
Saccone, Marco, Cavallo, Gabriella, Metrangolo, Pierangelo, Resnati, Giuseppe, Priimagi, Arri   +5 more
openaire   +7 more sources