Results 61 to 70 of about 88,046 (140)

Resonant X-ray emission spectroscopy reveals d–d ligand-field states involved in the self-assembly of a square-planar platinum complex [PDF]

, 2012
Resonant X-ray Emission Spectroscopy (RXES) is used to characterize the ligand field states of the prototypic self-assembled square-planar complex, [Pt(tpy)Cl]Cl (tpy=2,2′:6′,2′′-terpyridine), and determine the effect of weak metal-metal and π-π ...
Adamovich, Arena, Bailey, Bergmann, Carlo Lamberti, Claudio Garino, Dedieu, Dickinson, Ditchfield, Erik Gallo, Fuentealba, Gauthier, Gel′mukhanov, Glatzel, Glatzel, Glatzel, Goshe, Jimenez-Mier, Kotani, Krause-Heuer, Krogmann, Lippard, Lowe, Luca Salassa, McMillin, Nikolay Smolentsev, Peter J. Sadler, Pieter Glatzel, Ratilla, Roberto Gobetto, Schwarz, Smolentsev, Tao, Yam, Yam, Yip, Yu   +36 more
core   +1 more source

Ethyl 1-benzyl-1,2,3,3a,4,10b-hexa-hydro-pyrrolo-[2',3':3,4]pyrrolo-[1,2-a]benzimidazole-2-carboxyl-ate. [PDF]

, 2011
The title mol-ecule, C(22)H(23)N(3)O(2), was obtained via an intra-molecular cyclo-addition of an azomethine ylide and an alkene tethered by a benzimidazole unit. The benzoimidazole unit is essentially planar, with an r.m.s.
Fettinger, James C, Kurth, Mark J, Meng, Liping   +2 more
core   +2 more sources

Crystal structures of the three closely related compounds: bis[(1H-tetrazol-5-yl)methyl]nitramide, triaminoguanidinium 5-({[(1H-tetrazol-5-yl)methyl](nitro)amino}methyl)tetrazol-1-ide, and diammonium bis[(tetrazol-1-id-5-yl)methyl]nitramide monohydrate

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the molecule of neutral bis[(1H-tetrazol-5-yl)methyl]nitramide, (I), C4H6N10O2, there are two intramolecular N—H...O hydrogen bonds. In the crystal, N—H...N hydrogen bonds link molecules, forming a two-dimensional network parallel to (-201) and weak C—
Lauren A. Mitchell, Gregory H. Imler, Damon A. Parrish, Jeffrey R. Deschamps, Philip W. Leonard, David E. Chavez   +5 more
doaj   +1 more source

Singlet fission initiating triplet generations of BODIPY derivatives through $$\pi $$ π -stacking: a theoretical study

Scientific Reports, 2022
The role of singlet fission (SF) in the triplet-state generation mechanism of 1,3,5,7-tetramethyl-boron-dipyrromethene derivatives is revealed by exploring the cause for the solvent dependence of the generation rate.
Takao Tsuneda, Tetsuya Taketsugu
doaj   +1 more source

On Pi-Stacking, CH/Pi, and Halogen Bonding in Halobenzene Clusters: Resonant 2-Photon Ionization Studies of Chlorobenzene [PDF]

, 2012
Noncovalent interactions such as hydrogen bonding, π-π stacking, CH/π interactions, and halogen bonding play crucial roles in a broad spectrum of chemical and biochemical processes, and can exist in cooperation or competition.
Muzangwa, Lloyd, Nyambo, Silver, Reid, Scott, Uhler, Brandon   +3 more
core   +1 more source

Crystal structure of catena-poly[[(dimethyl sulfoxide-κO)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II)]-μ-pyrazine-κ2N:N′]

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title coordination polymer, [Ni(C7H3NO4)(C4H4N2)(C2H6OS)]n, consists of [010] chains composed of NiII ions linked by bis-monodentate-bridging pyrazine molecules. Each of the two crystallographically distinct NiII ions is located on a mirror plane and
Chen Liu, Annaliese E. Thuijs, Ashley C. Felts, Hamza F. Ballouk, Khalil A. Abboud   +4 more
doaj   +1 more source

Crystal structure of 4-methylsulfanyl-2-phenylquinazoline

Acta Crystallographica Section E, 2014
In the title compound, C15H12N2S, the methylthioquinazoline group is planar with the methyl C displaced by only 0.116 (3) Å from the plane of the quinazoline moiety. The dihedral angle between the phenyl ring and the quinazoline ring system is 13.95 (5)°.
Mohammed B. Alshammari, Keith Smith, Amany S. Hegazy, Benson M. Kariuki, Gamal A. El-Hiti   +4 more
doaj   +1 more source

Reversible Interlayer Sliding and Conductivity Changes in Adaptive Tetrathiafulvalene-Based Covalent Organic Frameworks. [PDF]

, 2020
Ordered interlayer stacking is intrinsic in two-dimensional covalent organic frameworks (2D COFs) and has strong implications on COF's optoelectronic properties.
Cai, Songliang, Chatterjee, Ruchira, Fan, Jun, Garzón-Ruiz, Andrés, Li, Xinle, Liu, Yi, Mao, Haiyan, Navarro, Amparo, Reimer, Jeffrey A, Sun, Bing, Yan, Yilun, Yano, Junko, Zhang, Weiguang, Zheng, Shengrun, Zhu, Chenhui   +14 more
core   +2 more sources

1-(3-Chloro-6-nitro-1H-indazol-1-yl)ethan-1-one

IUCrData, 2017
The asymmetric unit of the title compound, C9H6ClN3O3, contains one full molecule in a general position and a half molcule sitting on a crystallographic mirror plane.
Mohamed Mokhtar Mohamed Abdelahi, Youness El Bakri, Mohamed Ellouz, Mohammed Benchidmi, El Mokhtar Essassi, Joel T. Mague   +5 more
doaj   +1 more source

4-(4-Bromophenyl)-2-(3-(4-chlorophenyl)-5-{3-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}-4,5-dihydro-1H-pyrazol-1-yl)thiazole

IUCrData, 2018
In the title compound, C37H28BrClN8O, the linked chlorophenyl, pyrazolyl and thiazolyl ringss are almost coplanar, with dihedral angles of 0.6 (3)° between the chlorophenyl and pyrazolyl rings and 5.4 (3)° between the pyrazolyl and thiazolyl rings.
Gamal A. El-Hiti, Hanan A. Mohamed, Bakr F. Abdel-Wahab, Mohammad Hayal Alotaibi, Amany S. Hegazy, Benson M. Kariuki   +5 more
doaj   +1 more source