Results 71 to 80 of about 134,456 (306)

Solvation State and Selective Solvation of D-Sorbitol in Water-Dimethylformamide Medium of Varying Composition [PDF]

Учёные записки Казанского университета: Серия Естественные науки, 2016
The solvation state of D-sorbitol has been determined in water-dimethylformamide (DMF) system (from 0 to 10 m.p.) using the method of polarimetry. The composition and formation constants of D-sorbitol – water – DMF heterosolvates have been obtained.
K.A. Ignat’eva, A.A. Chernov, A.V. Rubanov, F.V. Devyatov   +3 more
doaj  

catena-Poly[[[aquacopper(II)]-bis[μ-N,N′-bis(pyridin-4-yl)isophthalamide]-[aquacopper(II)]-di-μ-sulfato] dimethylformamide disolvate]

Acta Crystallographica Section E, 2013
In the title coordination polymer, {[Cu(SO4)(C18H14N4O2)(H2O)]·C3H7NO}n, the CuII ion is coordinated by two N atoms of two briding N,N′-bis(pyridin-4-yl)isophthalamide ligands, two O atoms of two bridging SO42− anions and a water ...
Yu-Fei Wang, Li-Ping Wang, Er-Peng Zhang
doaj   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Structure of (E)-4-amino-5-{[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino]methyl}-1-methyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one: aerial oxidation of 4-aminoantipyrine in dimethylformamide

Acta Crystallographica Section E: Crystallographic Communications
The title compound, C22H22N6O2 (I), is the result of the aerial oxidation of the 5-methyl group of 4-aminoantipyrine to an aldehyde group followed by Schiff base formation with a second molecule of 4-aminoantipyrine.
R. Kumaravel, Helen Stoeckli-Evans, A. Subashini, M. G. Shankar, Monika Kučeráková, Michal Dušek, Aurélien Crochet, K. Ramamurthi   +7 more
doaj   +1 more source

1,5-Bis[1-(2,4-dihydroxyphenyl)ethylidene]carbonohydrazide dimethylformamide disolvate

Acta Crystallographica Section E, 2010
In the title compound, C17H18N4O5·2C3H7NO, two solvent molecules are linked to the main molecule via N—H...O and O—H...O hydrogen bonds, forming a hydrogen-bonded trimer.
Qing-Peng He, Bo Tan, Ze-Hua Lu
doaj   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

N2,N2′-Bis(pyridin-2-ylmethylidene)pyridine-2,6-dicarbohydrazide dimethylformamide monosolvate

Acta Crystallographica Section E, 2010
In the crystal of the title compound, C22H22N8O3, the dicarbohydrazide molecules are linked into a chain along [010] by C—H...N interactions involving the pyridyl N atoms and aromatic C—H groups.
Chuan-Gang Fan, Ming-zhi Song
doaj   +1 more source

Process for interfacial polymerization of pyromellitic dianhydride and 1,2,4, 5-tetraamino-benzene Patent [PDF]

, 1970
Process for interfacial polymerization of pyromellitic dianhydride and tetraamino ...
Bell, V. L., Jr.
core   +1 more source

Polymer Network Modified Perovskite for High‐Performance Pure Blue Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
A polymer network of poly(4‐vinylphenol) (PVPh) is introduced to improve pure blue perovskite light‐emitting diodes. PVPh effectively passivates defects, enhances film morphology, reduces lattice strain, and suppresses ion migration. These effects lead to record device performance, achieving 9.82% external quantum efficiency and stable blue emission at
Zhongkai Yu, Jiawei Hong, Jiaxin Song, Zihao Ren, Ke Zhou, Shengnan Liu, Minhui Yu, Yue Xu, Minjeong Ha, Yongbin Hua, Baodan Zhao, Bo Ram Lee   +11 more
wiley   +1 more source

Avaliação de diferentes crioprotetores intra e extracelulares na criopreservação de sêmen de touros Evaluation of different intra and extracellular cryoprotectants on bull semen cryopreservation

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Em um delineamento experimental usando o fatorial 3x2, três crioprotetores internos, glicerol (GLI), etilenoglicol (EG) e dimetilformamida (DMF), e dois externos, gema de ovo (GEMA) e lipoproteína de baixa densidade (LDL), avaliaram-se a motilidade ao ...
E.M. Madeira, I. Bianchi, M.B. Vieira, A. Schneider, N.C. Severo, L.F.M. Pfeifer, M.N. Corrêa   +6 more
doaj