Results 31 to 40 of about 496,088 (311)

Structural stability of biofilms produced from silkworm cocoon fibers [PDF]

Journal of the Serbian Chemical Society, 2022
Biofilms were obtained from cocoons of the silkworm, Bombyx mori, involving the removal of sericin, extraction and solubilization of fibroin fibers, dialysis of fibroin dispersions and preparation of biofilms by the casting process.
Felício Souza Madureira Ana Lúcia de, Santana Henrique de   +1 more
doaj   +1 more source

Crystal structures of (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone and of a fourth polymorph of (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the molecules of both (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone, C15H12FNO2, (I), and (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone, C16H15NO3, (II), which crystallizes with Z′ = 2 in space group Pca21, there are
Marisiddaiah Girisha, Hemmige S. Yathirajan, Ravindranath S. Rathore, Christopher Glidewell   +3 more
doaj   +1 more source

A supramolecular proposal of lignin structure and its relation with the wood properties

Anais da Academia Brasileira de Ciências, 2009
In spite of the great importance of cellulose the lignin is considered the second most abundant substance of the wood. However, little attention has been given it, mainly to wood properties. The lignin as well as other structural compounds (cellulose and
Heber S. Abreu, João V.F. Latorraca, Regina P.W. Pereira, Maria Beatriz O. Monteiro, Fábio A. Abreu, Kelysson F. Amparado   +5 more
doaj   +1 more source

Conformation-Dependent Spin Relaxation Behaviors of 6‑Oxoverdazyl Radical Single Crystals

, 2020
The molecular conformation and packing mode of organic radicals are vital to achieving distinctive electronic, spin relaxation, and magnetic properties.
Ya-Zhong Dai, Jie-Yu Wang (1411747), Ze-Fan Yao, Yang Lu, Yang Lu (59885), Zi-Yuan Wang, Bo-Wei Dong, Li Ding, Ya-Zhong Dai (8575725), Jian Pei, Bo-Wei Dong (4751658), Shang-Da Jiang (1510237), Jie-Yu Wang, Li Ding (16240), Ze-Fan Yao (1453192), Shang-Da Jiang, Zi-Yuan Wang (6693302), Jian Pei (1411741)   +17 more
core   +1 more source

Crystal structures of (2E)-1-(3-bromothiophen-2-yl)-3-(2-methoxyphenyl)prop-2-en-1-one and (2E)-1-(3-bromothiophen-2-yl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the molecules of the title compounds, (2E)-1-(3-bromo-thiophen-2-yl)-3-(2-methoxyphenyl)prop-2-en-1-one, C14H11BrO2S, (I), which crystallizes in the space group P-1 with four independent molecules in the asymmetric unit (Z′ = 8), and (2E)-1-(3 ...
Vasant S. Naik, Venkataraya Shettigar, Tyler S. Berglin, Jillian S. Coburn, Jerry P. Jasinski, Hemmige S. Yathirajan   +5 more
doaj   +1 more source

Crystal structures of the recreational drug N-(4-methoxyphenyl)piperazine (MeOPP) and three of its salts

Acta Crystallographica Section E: Crystallographic Communications, 2020
Crystal structures are reported for N-(4-methoxyphenyl)piperazine (MeOPP), (I), and for its 3,5-dinitrobenzoate, 2,4,6-trinitrophenolate (picrate) and 4-aminobenzoate salts, (II)–(IV), the last of which crystallizes as a monohydrate. In MeOPP, C11H16N2O,
Haruvegowda Kiran Kumar, Hemmige S. Yathirajan, Chayanna Harish Chinthal, Sabine Foro, Christopher Glidewell   +4 more
doaj   +1 more source

The Rotational Barrier in Ethane: A Molecular Orbital Study

Molecules, 2012
The energy change on each Occupied Molecular Orbital as a function of rotation about the C-C bond in ethane was studied using the B3LYP, mPWB95 functional and MP2 methods with different basis sets.
Gonzalo J. Mena-Rejón, Gabriel Cuevas, Mariana Quesadas-Rojas, Ramiro F. Quijano-Quiñones   +3 more
doaj   +1 more source

Global hydrodynamic analysis of the molecular flexibility of galactomannans [PDF]

, 2008
In the past, intrinsic viscosity and sedimentation velocity analyses have been used separately to assess the conformation and flexibility of guar and locust bean gum galactomannans based on worm-like chain and semi-flexible coil models.
Ortega, A., Gordon A. Morris, Ross-Murphy, S. B., Jose Garcia de la Torre, Trushar R. Patel, David R. Picout, Garcia de la Torre, J., Harding, S. E., Picout, D. R., Morris, Gordon, Simon B. Ross-Murphy, Patel, T. R., Alvaro Ortega, Stephen E. Harding   +13 more
core   +1 more source

Ethyl 4-(4-chlorophenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

Acta Crystallographica Section E, 2009
In the title compound, C14H15ClN2O2S, the tetrahydropyrimidine ring adopts a twisted boat conformation with the carbonyl group in an s-trans conformation with respect to the C=C double bond of the six-membered tetrahydropyrimidine ring.
Susanta K. Nayak, K. N. Venugopala, Deepak Chopra, Thavendran Govender, Hendrik G. Kruger, Glenn E. M. Maguire, T. N. Guru Row   +6 more
doaj   +1 more source

Structural investigation of N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide and N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]-4-methoxybenzamide

Acta Crystallographica Section E: Crystallographic Communications, 2021
The compound N-[2-(4-fluoro-3-phenoxybenzoyl)hydrazinecarbothioyl]benzamide, C21H16FN3O3S, crystallizes in the monoclinic centrosymmetric space group P21/c and its molecular conformation is stabilized via an intramolecular N—H...O hydrogen bond.
Dhananjay Dey, I. Shruti, Deepak Chopra, T. P. Mohan   +3 more
doaj   +1 more source