Results 41 to 50 of about 3,671 (216)

New Titanium Imido Synthons:  Syntheses and Supramolecular Structures

Inorganic Chemistry, 2005
Reactions of Ti(NMe(2))(2)Cl(2) with a wide range of primary alkyl and arylamines RNH(2) afforded the corresponding 5-coordinate imido titanium compounds Ti(NR)Cl(2)(NHMe(2))(2) (R = (t)Bu (1), (i)Pr (2), CH(2)Ph (3), Ph (4), 2,6-C(6)H(3)Me(2) (5), 2,6-C(6)H(3)(i)Pr(2) (6), 2,4,6-C(6)H(2)F(3) (7), 2,3,5,6-C(6)HF(4) (8), C(6)F(5) (9), 4-C(6)H(4)Cl (10),
Adams, Nico, Bigmore, Helen R., Blundell, Timothy L., Boyd, Catherine L., Dubberley, Stuart R., Sealey, Andrew J., Cowley, Andrew R., Skinner, Michael E. G., Mountford, Philip   +8 more
openaire   +3 more sources

Hydrogen-Bonding Motifs in Piperazinediium Salts

Crystals, 2014
Four novel organic salts of piperazine and 2-methylpiperazine with p-toluenesulfonic acid and chloroacetic acid have been synthesized and structurally characterized.
Chris S. Hawes, Cherry Chen, Andrew Tran, David R. Turner   +3 more
doaj   +1 more source

Exploiting Supramolecular Synthons in Cocrystals of Two Racetams with 4-Hydroxybenzoic Acid and 4-Hydroxybenzamide Coformers

Chemistry, 2023
Structures of three cocrystals of nootropic racetams were studied. They included two cocrystals of phenylpiracetam (PPA) with 4-hydroxybenzoic acid (HBA) with different stoichiometries, PPA·HBA and PPA·2HBA, and cocrystal of 2-(4-phenyl-2-oxopyrrolidin-1-
Jason Marquez, Egor Novikov, Sergei Rigin, Marina S. Fonari, Raúl Castañeda, Tatiana Kornilova, Tatiana V. Timofeeva   +6 more
doaj   +1 more source

Supramolecular assemblies of copper(II) complexes: supramolecular synthon transferability and magnetic properties [PDF]

Acta Crystallographica Section A Foundations and Advances, 2019
In the pursuit of new technologies there is exigency for novel materials with desired physical and chemical properties. Despite the fact that metal-based crystalline solids provide an access to properties that are typically unavailable or difficult to achieve in metal-free settings (i.e. magnetic or optical).
Borovina, Mladen, Pajić, Damir, Đaković, Marijana, Penić, Nikolina   +3 more
openaire   +3 more sources

Crystal structure of 2,4-diamino-6-oxo-3,6-dihydropyrimidin-1-ium p-toluenesulfonate

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title salt, C4H7N4O+·C7H7O3S−, the 2,6-diamino-4-oxo-1,3-dihydropyrimidin-1-ium cation interacts with the sulfonate group of the p-toluenesulfonate anion via a pair of N—H...O hydrogen bonds, forming a hetero-synthon R22(8) that mimics the role of
Krishnasamy Mamallan, Sadasivam Sharmila Tagore, Sundaramoorthy Gomathi, Velusamy Sethuraman   +3 more
doaj   +1 more source

N-(4-Bromophenyl)methoxycarbothioamide [PDF]

, 2018
The synthesis, spectroscopic and crystallographic characterisation of the title compound, O-methyl-N-4-bromophenyl thiocarbamate, MeOC(=S)N(H)PhBr-4 (1), are described.
Tiekink, Edward R. T. *, Yeo, Chien Ing *   +1 more
core   +2 more sources

Crystal design approaches for the synthesis of paracetamol co-crystals [PDF]

, 2012
Crystal engineering principles were used to design three new co-crystals of paracetamol. A variety of potential cocrystal formers were initially identified from a search of the Cambridge Structural Database for molecules with complementary hydrogen-bond ...
Kraft, A., Powell, Anthony V., Srirambhatla, V. K., Watt, S.   +3 more
core   +1 more source

Self-assembly in solution of a reversible comb-shaped supramolecular polymer [PDF]

, 2010
We report a single step synthesis of a polyisobutene with a bis-urea moiety in the middle of the chain. In low polarity solvents, this polymer self-assembles by hydrogen bonding to form a combshaped polymer with a central hydrogen bonded backbone and ...
Abed S., Arnaud A., Bellot M., Berl V., Bernard J., Binder W. H., Binder W. H., Binder W. H., Binder W. H., Binder W. H., Boileau S., Bouteiller L., Bouteiller L., Brunsveld L., Casassa E. F., Ciferri A., Colombani O., Colombani O., Cordier P., Ducouret G., Ercolani G., Fang Z., Hammond M. R., Huang F., Ikkala O., Isare B., Isare B., Kato T., Kato T., Kato T., Knoben W., Knoben W., Lange R. F. M., Lortie F., Miyawaki A., Mueller M., Ohkawa H., Pinault T., Rosselli S., Ruokolainen J., Scherman O. A., Schirle M., Shikata T., Simic V., ten Brinke G., ten Cate A. T., Todd E. M., van der Gucht J., Vonau F., Yamaguchi N., Yount W. C.   +50 more
core   +4 more sources

Integrating and Exploiting Molecular, Supramolecular, and Time Crystal Synthons in Advanced Synthesis

Crystals
Molecular reactions occur through functional groups that drive covalent synthesis. These reactions often proceed via catalytic processes, leading to the formation of time crystals, which can be integrated into shared molecules or reactions—a concept ...
Indrajit Chakraborty, Tusar Kanti Dutta, Sudipta Ray, Deepak Kumar, Pathik Sahoo   +4 more
doaj   +1 more source

5-Hydroxy-7-phenyl-5-(prop-2-yn-1-yl)-5,6-dihydro-1-benzofuran-2(4H)-one monohydrate

Acta Crystallographica Section E, 2010
In the title compound, C17H14O3·H2O, the six-membered ring, which adopts a half-chair conformation, makes a dihedral angle of 24.3 (2)° with the phenyl ring.
Laura Torre-Fernández, Marcos G. Suero, Santiago García-Granda   +2 more
doaj   +1 more source