Results 61 to 70 of about 73,933 (268)
4-(Dimethylamino)pyridinium dibromidotriphenylstannate(IV) [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The anion in the title salt, (C(7)H(11)N(2))[SnBr (2)(C(6)H(5))(3)], lies on a twofold rotation axis that passes through the metal atom as well as the C(ipso)-C(para) atoms of one of the aromatic rings. The metal center is five-coordinate in a trans-Br(2)SnC(3) trigonal bipyramidal geometry. The cation is disordered about a center of inversion.
Ilyana Norhafiza +2 more
openaire +3 more sources
Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction
Advanced Healthcare Materials, EarlyView.Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang +4 more
wiley +1 more source
Synthesis of novel room temperature chiral ionic liquids. application as reaction media for the heck arylation of aza-endocyclic acrylates. [PDF]
, 2010 New achiral and chiral RTILs were prepared using novel and/or optimized synthetic routes. These new series of imidazolinium, imidazolium, pyridinium and nicotine-derived ionic liquids were fully characterized including differential scanning calorimetry ...
Correia, Carlos R. D. +4 more
core +4 more sources
Convergent Total Synthesis of 16β‐Hydroxylpseudobufarenogin
Angewandte Chemie, EarlyView.We present a novel convergent strategy that integrates Pd/Ag‐promoted Suzuki–Miyaura coupling with Ir‐catalyzed radical‐relay cyclization, enabling the first total synthesis of 16β‐hydroxylpseudobufarenogin. This approach is broadly applicable to the total synthesis of various oxygenated bufadienolides by simply modifying the fragment structures ...
Wataru Shigematsu +3 more
wiley +2 more sources
2-Aminopyridinium 2,4-dinitrophenolate
IUCrData, 2016 The asymmetric unit of the title organic salt, C5H7N2+·C6H3N2O5−, comprises two 2-aminopyridinium cations and two 2,4-dinitrophenolate anions. The cations are protonated at the pyridine N atoms, while the anions are deprotonated at hydroxyl O atoms.
S. Reena Devi +4 more
doaj +1 more source
Pyridinium-1-thioacylaminides [PDF]
Bulletin of the Chemical Society of Japan, 1983 Abstract Pyridinium-, 2-methylpyridinium-, and 2,6-dimethylpyridinium-1-thioacylaminides (5–7) were prepared from the corresponding unsubstituted pyridinium-1-aminides and methyl dithiocarboxylates in fairly good yields. The alkylation reaction of 5–7 took place exclusively on the thiocarbonyl sulfur, yielding pyridinium salts in ...
Hiroshi Yoshida +2 more
openaire +1 more source
Advanced Materials, EarlyView.An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim +8 more
wiley +1 more source
Asymmetric addition of chiral boron-ate complexes to cyclic iminium ions [PDF]
, 2014 Boron-ate complexes derived from enantioenriched secondary benzylic boronic esters and aryl lithiums have been reacted with quinolinium, pyridinium and dihydroisoquinolinium salts to give enantioenriched heterocyclic structures with very high ...
Aggarwal, Varinder K. +4 more
core +2 more sources
Advanced Materials Technologies, EarlyView.ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali +4 more
wiley +1 more source
Novel Charge-Transfer Materials via Cocrystallization of Planar Aromatic Donors and Spherical Polyoxometalate Acceptors [PDF]
, 2000 Spherical polyoxometalates (POMs) such as M6O192- and SiM12O404- (with M = Mo or W) and planar arene donors (anthracenes and pyrenes) can be cocrystallized (despite their structural incompatibility) by attaching a cationic “anchor” onto the arene which ...
Hubig, S. M. +4 more
core +1 more source