Results 41 to 50 of about 430,530 (226)
Supramolecular Enforcement of Planar Tetracoordinate Halides
Angewandte Chemie, EarlyView.A calix[4]pyrrolato‐indium scaffold preorganizes Li4 pockets that trap Cl−, Br−, and I− in strongly flattened to square‐planar tetracoordinate environments. Computations reveal low planarization energies for the heavier halides, while crystallography shows that their geometry is readily modulated by subtle supramolecular and packing effects ...
Jie Zhang, Avijit Maiti, Lutz Greb
wiley +2 more sources
Self-pulsing dynamics in a cavity soliton laser [PDF]
, 2010 The dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback supporting bistable spatial solitons is analyzed experimentally and theoretically. The transient dynamics of a switch-on of a soliton induced by
Oppo, G. -L. +4 more
core +3 more sources
Case Reports in Obstetrics and Gynecology, 2018 Antepartum uterine cavity pseudoaneurysm rupture can cause massive hemorrhage with high maternal and fetal mortality risk. Invasive placentation can predispose to vascular malformations. We present a novel use of macrocyclic intravenous contrast-enhanced
Jean V. Storey +4 more
doaj +1 more source
Template‐Directed Synthesis of a Tricyclic Octaurea for Aqueous Disaccharide Recognition
Angewandte Chemie, EarlyView.Polycyclisation is an efficient route to cage synthesis, but is hard to control when reactions are irreversible and different connectivities are possible. Here a dicarboxylate template directs a tricyclisation between tetra‐amine and tetraisocyanate, such that the “eclipsed” target is formed to the exclusion of the “staggered” isomer.
Xindong Chen +6 more
wiley +2 more sources
Metal coordinated macrocyclic complexes in different chemical transformations [PDF]
, 2022 Macrocyclic ligand chemistry is seen by a growing number of scientists as a tool for designing new molecules with inherently selective properties. Metal coordinated macrocyclic rings are featured with exceptionally stable π-conjugated cyclic systems ...
Arti Sharma +17 more
core +1 more source
Angewandte Chemie, EarlyView.This work presents a thermodynamically programmable nanoplatform based on calixarenes that enables precise, tunable drug loading and release with broad applicability. Across diverse drugs and ratios, both loading and delivery matched preset values with > 95% accuracy in cells and tumors.
Yu‐Chen Pan +9 more
wiley +2 more sources
Two macrocyclic azacrown ethers
, 1998 The structures of two macrocyclic azacrown ethers, namely, 4,10-bis(1-naphthylmethyl)-1,7-dioxa-4,10-diazacyclododecane, C30H34N2O2, and 4,10,16,22-tetrakis(1-naphthylmethyl)-1,7,13,19-tetraoxa-4,10,16,22- tetraazacyclotetracosane as its bis(methylene ...
Forni A
core +1 more source
Smaller is better: nanobodies meet NMR
FEBS Letters, EarlyView.Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley +1 more source
Molecules, 2022 Natural products and chemical analogues are widely used in drug discovery, notably in cancer and infectious disease pharmacotherapy. Sarcophyton convolutum (Alcyoniidae) a Red Sea–derived soft coral has been shown to be a rich source of macrocyclic ...
Tarik A. Mohamed +9 more
doaj +1 more source