Results 41 to 50 of about 5,534 (160)

2,25-Dioxo-27,28-diphenyl-30-oxa-29-thia-3,10,17,24-tetraazapentacyclo[24.2.1.112,15.04,9.018,23]triaconta-5,7,9(4),10,12,14,16,18,20,22,26,28-dodecaene chloroform disolvate

Acta Crystallographica Section E, 2010
The macrocycle of the title compound, C36H24N4O3S·2CHCl3, contains a rigid framework with the nitrogen and oxygen heteroatoms pointing in towards the center of the macrocyclic cavity. The macrocycle is essentially planar (r.m.s.
Victor N. Khrustalev, Abel M. Maharramov, Evgeny A. Katayev, Rizvan K. Askerov, Vladimir V. Roznyatovsky   +4 more
doaj   +1 more source

Synthesis, Structure, and Characterization of Thiacalix[4]-2,8-thianthrene

Molecules, 2023
Sulfur-containing macrocycles have attracted substantial interest because they exhibit unique characteristics due to their polygonal ring-shaped skeleton.
Masafumi Ueda, Moe Isozaki, Yasuhiro Mazaki   +2 more
doaj   +1 more source

The effect of pressure and substituents on the size of pseudo-macrocyclic cavities in salicylaldoxime ligands [PDF]

CrystEngComm, 2008
The effect of pressure on the crystal structures of 3-chloro-, 3-methoxy-, 3-methyl- and 3-tert-butylsalicylaldoximes has been investigated. The compounds all form the dimeric structure found in salicylaldoxime form I at ambient pressure, which is based on intermolecular hydrogen bonds between the oximic hydrogen and the phenolic oxygen atoms across an
Wood, Peter A., Forgan, Ross S., Lennie, Alistair R., Parsons, Simon, Pidcock, Elna, Tasker, Peter A., Warren, John E.; id_orcid 0000-0002-8755-7981   +6 more
openaire   +4 more sources

Synthesis and crystal structure of a heterobimetallic nickel–manganese 12-metallacrown-4 methanol disolvate monohydrate compound

Acta Crystallographica Section E: Crystallographic Communications, 2020
The synthesis and crystal structure of the title compound [systematic name: di-μ-acetato-tetrakis(μ4-N,2-dioxidobenzene-1-carboximidato)hexamethanoltetramanganese(III)nickel(II) methanol disolvate monohydrate], [Mn4Ni(C7H4NO3)4(C2H3O2)2(CH4O)6]·2CH4O·H2O
Abigail J. Hall, Matthias Zeller, Curtis M. Zaleski   +2 more
doaj   +1 more source

Optical, Electrochemical, Third-Order Nonlinear Optical Investigations of 3,4,5-Trimethoxy Phenyl Substituted Non-Aqueous Phthalocyanines

Frontiers in Chemistry, 2021
A new series of non-aqueous phthalocyanines having 3,4,5-trimethoxy phenyl group at peripheral positions in which the central cavity possessing Cu(II), Zn(II), and without metals has been synthesized, and its absorption, fluorescence (steady-state and ...
K. S. Srivishnu, K. S. Srivishnu, Dipanjan Banerjee, Ramya Athira Ramnagar, Jagannath Rathod, Lingamallu Giribabu, Lingamallu Giribabu, Venugopal Rao Soma   +7 more
doaj   +1 more source

Potentiometric Carboxylate Sensors Based on Carbazole-Derived Acyclic and Macrocyclic Ionophores

Chemosensors, 2020
Solid-contact ion-selective electrodes with carbazole-derived ionophores were prepared. They were characterized as acetate sensors, but can be used to determine a number of carboxylates. The potentiometric response characteristics (slope, detection limit,
Ville Yrjänä, Indrek Saar, Mihkel Ilisson, Sandip A. Kadam, Ivo Leito, Johan Bobacka   +5 more
doaj   +1 more source

Crystal structure of tetraaqua(dimethylformamide)tetrakis(μ-N,2-dioxidobenzene-1-carboximidato)tetrakis(μ-trimethylacetato)tetramanganese(III)sodiumyttrium–dimethylformamide–water (1/8.04/0.62)

Acta Crystallographica Section E: Crystallographic Communications, 2015
The synthesis and crystal structure for the title compound, [YNaMn4(C7H4NO3)4(C5H9O2)4(H2O)3.76(C3H7NO)0.24]·8.04C3H7NO·0.62H2O or [YIIINa(OTMA)4[12-MCMn(III)N(shi)-4](H2O)3.76(DMF)0.24·8.04DMF·0.62H2O, where OTMA is trimethylacetate, MC is metallacrown,
Jordan R. Travis, Matthias Zeller, Curtis M. Zaleski   +2 more
doaj   +1 more source

A dodecamethoxy[6]cycloparaphenylene consisting entirely of hydroquinone ethers: unveiling in-plane aromaticity through a rotaxane structure

Nature Communications, 2023
[n]Cycloparaphenylenes ([n]CPPs, where n is the number of phenylene groups), consisting of 1,4-linked phenylene unit, have attracted much attention due to their cyclic π-conjugated structures and physical properties.
Naoki Narita, Yusuke Kurita, Kohtaro Osakada, Tomohito Ide, Hidetoshi Kawai, Yoshitaka Tsuchido   +5 more
doaj   +1 more source

Crystal structure and supramolecular features of a host–guest inclusion complex based on A1/A2-hetero-difunctionalized pillar[5]arene

Acta Crystallographica Section E: Crystallographic Communications
A host–guest supramolecular inclusion complex was obtained from the co-crystallization of A1/A2-bromobutoxy-hydroxy difunctionalized pillar[5]arene (PilButBrOH) with adiponitrile (ADN), C47H53.18Br0.82O10·C6H8N2.
Mickey Vinodh, Talal F. Al-Azemi
doaj   +1 more source

μ-Hexathiometadiphosphato-bis[(1,4,7,10,13,16-hexaoxacyclooctadecane-κ6O)rubidium] acetonitrile disolvate

Acta Crystallographica Section E, 2013
The asymmetric unit of the title compound, [Rb2(P2S6)(C12H24O6)2]·2CH3CN, contains one half of an [Rb(18-crown-6)2]2[P2S6] unit and one acetonitrile solvent molecule. The [Rb(18-crown-6)]2[P2S6] unit is completed by inversion symmetry.
Flora Qarri, Niels-Patrick Pook, Mimoza Gjikaj   +2 more
doaj   +1 more source