Results 31 to 40 of about 1,343,548 (292)

Construction of Negatively Curved Cubic Carbon Crystals via Standard Realizations

, 2016
We constructed physically stable sp2 negatively curved cubic carbon structures which reticulate a Schwarz P-like surface. The method for constructing such crystal structures is based on the notion of the standard realization of abstract crystal lattices.
Naito, Hisashi
core   +1 more source

Crystal structures of three 3-chloro-3-methyl-2,6-diarylpiperidin-4-ones

Acta Crystallographica Section E: Crystallographic Communications, 2017
The syntheses and crystal structure of 3-chloro-3-methyl-r-2,c-6-diphenylpiperidin-4-one, C18H18ClNO, (I), 3-chloro-3-methyl-r-2,c-6-di-p-tolylpiperidin-4-one, C20H22ClNO, (II), and 3-chloro-3-methyl-r-2,c-6-bis(4-chlorophenyl)piperidin-4-one ...
R. Arulraj, S. Sivakumar, Manpreet Kaur, A. Thiruvalluvar, Jerry P. Jasinski   +4 more
doaj   +1 more source

Three-dimensional networks containing rectangular Sr-4 and Ba-4 units : synthesis, structure, bonding, and potential application for Ne gas separation [PDF]

, 2015
New porous three-dimensional metal-organic frameworks are synthesized that contain infinite chains of Srn and Ban rectangles. Their structures are elucidated by means of spectroscopic techniques such as nuclear magnetic resonance and Fourier transform ...
Anoop, Anakuthil, Bhattacharjee, Manish, Bultinck, Patrick, Chattaraj, Pratim K, Cooper, David L, Deb, Dibakar, Duley, Soma, Giri, Santanab, Mandal, Subhajit, Pan, Sudip, Radenkovic, Slavko   +10 more
core   +2 more sources

Crystal structures of two 2,3-diaryl-2,3-dihydro-4H-1,3-benzothiazin-4-ones

Acta Crystallographica Section E: Crystallographic Communications, 2018
The syntheses and crystal structures of 2,3-bis[3-(trifluoromethyl)phenyl]-2,3-dihydro-4H-1,3-benzothiazin-4-one (di-m-CF3; C22H13F6NOS) (1) and 2,3-bis(4-methylphenyl)-2,3-dihydro-4H-1,3-benzothiazin-4-one (di-p-CH3; C22H19NOS) (2) are reported.
Hemant P. Yennawar, Michaela J. Buchwalter, Baylee K. Colburn, Lee J. Silverberg   +3 more
doaj   +1 more source

Crystal structures of two (Z)-2-(4-oxo-1,3-thiazolidin-2-ylidene)acetamides

Acta Crystallographica Section E: Crystallographic Communications, 2017
The crystal structures of two (oxothiazolidin-2-ylidene)acetamides, namely (Z)-2-[2-(morpholin-4-yl)-2-oxoethylidene]thiazolidin-4-one, C9H12N2O3S, (I), and (Z)-N-(4-methoxyphenyl)-2-(4-oxothiazolidin-2-ylidene)acetamide, C12H12N2O3S, (II), are described
Aleksei Galushchinskiy, Pavel Slepukhin, Konstantin Obydennov   +2 more
doaj   +1 more source

Improved real-space genetic algorithm for crystal structure and polymorph prediction [PDF]

, 2008
Existing genetic algorithms for crystal structure and polymorph prediction can suffer from stagnation during evolution, with a consequent loss of efficiency and accuracy.
M. I. J. Probert, N. L. Abraham, P. Debye   +2 more
core   +2 more sources

Crystal structures of two (±)-exo-N-isobornylacetamides

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compounds consist of a bornane skeleton with attached acetamide, C12H21NO (±)-(1) {systematic name: (±)-N-[(1RS,2RS,4RS)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl]acetamide}, and chloroacetamide, C12H20ClNO (±)-(2) {systematic name: (±)-2-chloro-
Dmitrijs Stepanovs, Daniels Posevins, Maris Turks   +2 more
doaj   +1 more source

Crystal structures of three N-(arylsulfonyl)-4-fluorobenzamides

Acta Crystallographica Section E: Crystallographic Communications, 2016
The crystal structures of three N-arylsulfonyl-4-fluorobenzamides, namely 4-fluoro-N-(2-methylphenylsulfonyl)benzamide, C14H12FNO3S, (I), N-(2-chlorophenylsulfonyl)-4-fluorobenzamide, C13H9ClFNO3S, (II), and N-(4-chlorophenylsulfonyl)-4-fluorobenzamide ...
P. A. Suchetan, S. Naveen, N. K. Lokanath, K. S. Srivishnu, G. M. Supriya, H. N. Lakshmikantha   +5 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Crystal structures of two triazola-dioxola-benzenacyclononaphanes

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compounds, C25H29BrN5O7, (I) [systematic name: (Z)-15-bromo-32,32-dimethyl-21-nitro-22,23,25,26,27,27a,33a,35,36,36a-decahydro-21H,61H-4,9-dioxa-2(3,2)-pyrrolizina-6(4,1)-triazola-3(5,6)-furo[2,3-d][1,3]dioxola-1(1,2)-benzenacyclononaphane],
Vijayan Viswanathan, Naga Siva Rao, Raghavachary Raghunathan, Devadasan Velmurugan   +3 more
doaj   +1 more source