Results 61 to 70 of about 5,778 (287)
Controlling thermal reactivity with different colors of light [PDF]
, 2017 The ability to switch between thermally and photochemically activated reaction channels with an external stimulus constitutes a key frontier within the realm of chemical reaction control.
Barner-Kowollik, Christopher +2 more
core +4 more sources
Shaping Carbon Nitrides for Advanced Macrostructures
Advanced Materials Technologies, EarlyView.This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley +1 more source
π‐Enlargement in Porphyrin Macrocycles at Interfaces
Angewandte Chemie, EarlyView.On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán +11 more
wiley +2 more sources
A Theoretical Approach to Relate the Reactivity Descriptors and Mulliken Charges with Carcinogenity of Some Methylated Benzo[a]Anthracene [PDF]
Pakistan Journal of Analytical & Environmental Chemistry, 2012 Quantum chemical calculations were carried out to explain how the electronic state and reactivity indices of some methylated benzo [a] anthracenes vary with position and number of methyl substituent in molecules. The global reactivity descriptors such as
Mahmoud S. Said, Zaheda A. Najim
doaj
Frontiers in Chemistry, 2023 Ethnopharmacological relevance: Therapeutic botanicals (plants and derivatives) are in use since antiquity for various health ailments. The ethnic community is the repository of the information, the multifactorial therapeutic applications of which may ...
Sarita Das +7 more
doaj +1 more source
9,10-Bis(iodoethynyl)anthracene
IUCrData, 2023 The title compound, C18H8I2, is an ethynyl-substituted anthracene. The C—C—I bond angles deviate from 180°, being affected by intermolecular I...π interactions. These interactions form a two-dimensional supramolecular structure further supported by offset π–π stacking of neighboring anthracene moieties.
Nehemiah Antoine +4 more
openaire +3 more sources
An assessment of chemical contaminants in the marine sediments of southwest Puerto Rico [PDF]
, 2007 This report summarizes the results of a characterization of chemical contaminants in the sediments in southwest Puerto Rico. The report is part of a project to integrate various analytical specialties to assess linkages between chemical contaminants ...
Caldow, Chris +7 more
core
Effects of Substituents on the Length of Central C(sp^3)-C(sp^3) Bond in Anthracene Photodimers and Related Molecules [PDF]
, 1986 Effects of substituents on the lengths of the central C–C single bond in the butterfly-shaped anthracene photodimers (1)–(7) and lepidopterenes (8) are studied.
Buda, Andrzej B. +5 more
core +1 more source
Advanced Optical Materials, EarlyView.Molecular crystals must withstand both isotropic and anisotropic stress to function in flexible optoelectronics and high‐pressure devices. In situ high‐pressure single‐crystal X‐ray diffraction coupled with DFT‐D computations reveal how an emissive molecular crystal with interdigitated packing bends elastically at ambient‐pressure and remains ...
Arif H. Dar +10 more
wiley +1 more source
Angewandte Chemie, EarlyView.Fine‐tuning steric and C─H···π contacts directs assembly of two CuI cages. An identical naphthylene‐based subcomponent forms a [CuI12L6]12+ pseudo‐hexagonal prism stabilized by 29–32 C─H···π contacts and 12 arene stacking pairs with 6‐methyl‐2‐formylpyridine, whereas the 3‐methyl analog imparts steric clashes, yielding a [CuI8L4]8+ open prism ...
Houyang Xu +3 more
wiley +2 more sources