Results 31 to 40 of about 35,436 (307)

Excimer formation by steric twisting in carbazole and triphenylamine-based host materials [PDF]

open access: yes, 2015
This paper presents a detailed spectroscopic investigation of luminescence properties of 4,4′-Bis(N-carbazolyl)-1,1′-biphenyl (CBP) and N,N,N’,N’-tetraphenylbenzidine (TAD) in solutions and neat films.
Alexander Rudnick (1351473)   +7 more
core   +3 more sources

Novel Rearrangements in the Reactions Directed Toward Preparation of Spiro-N,N-ketals: Reactions of Naphthalene-1,8-diamine with Ninhydrin and Isatin

open access: yesMolecules, 2012
Spiro-N,N-ketal 5, consisting of a phthaloperine heterocyclic ring and a naphtha[1,8-ef][1,4]diazepine ring, was obtained along with spiro-N,N-ketal 2 via 2,2-condensation in the reaction of ninhydrin with naphthalene-1,8-diamine.
Keiji Kobayashi   +4 more
doaj   +1 more source

Investigating nano-structuring within imidazolium ionic liquids: A thermodynamic study using photochromic molecular probes [PDF]

open access: yes, 2009
Following previous studies involving the thermal relaxation of spirocyclic compounds we extended our studies to investigate the formation of nano-structured domains in ionic liquids (ILs).
Byrne, Robert   +3 more
core   +1 more source

The tert-Amino Effect in Heterocyclic Chemistry. Synthesis of Spiro Heterocycles

open access: yesMolecules, 2005
The tert-amino reaction effect was examined. A new method to synthesize spiro heterocycles is presented. It was shown that the “tert-amino effect” could be applied to the formation of spiro-fused heterocycles.
Y. Morzherin   +4 more
doaj   +1 more source

Ligand-biased ensemble receptor docking (LigBEnD): a hybrid ligand/receptor structure-based approach. [PDF]

open access: yes, 2017
Ligand docking to flexible protein molecules can be efficiently carried out through ensemble docking to multiple protein conformations, either from experimental X-ray structures or from in silico simulations.
Abagyan, Ruben   +2 more
core   +2 more sources

Synthesis and evaluation of the antioxidant activity of new spiro-1,2,4-triazine derivatives applying Ag/Fe3O4/CdO@MWCNT MNCs as efficient organometallic nanocatalysts

open access: yesFrontiers in Chemistry, 2022
We applied the Petasites hybridus rhizome water extract as green media so that Ag/Fe3O4/CdO@ multi-walled carbon nanotubes magnetic nanocomposites (Ag/Fe3O4/CdO@MWCNTs MNCs) could be prepared.
Elham Ezzatzadeh   +3 more
doaj   +1 more source

Photo-responsive polymeric structures based on spiropyran [PDF]

open access: yes, 2012
Spiropyrans are one of the most popular classes of photochromic compounds that change their optical and structural properties in response to external inputs such as light, protons and metal ions, making them ideal molecules for the fabrication of ...
Adelmann   +82 more
core   +2 more sources

CXIX.—The formation and stability of spiro-compounds. Part I. spiro-Compounds from cyclohexane [PDF]

open access: yesJ. Chem. Soc., Trans., 1915
n ...
Beesley, Richard Moore   +2 more
openaire   +1 more source

Resonance Raman Interrogation of the Consequences of Heme Rotational Disorder in Myoglobin and its Ligated Derivatives [PDF]

open access: yes, 2008
Resonance Raman spectroscopy is employed to characterize heme site structural changes arising from conformational heterogeneity in deoxyMb and ligated derivatives, i.e., the ferrous CO (MbCO) and ferric cyanide (MbCN) complexes.
Kincaid, James R.   +2 more
core   +3 more sources

New development in the enantioselective synthesis of spiro compounds [PDF]

open access: yesChemical Society Reviews, 2018
In this review we summarize the latest developments in the enantioselective synthesis of spirocompounds. The most important organometallic and organocatalytic methodologies are highlighted.
Aishun Ding   +4 more
openaire   +2 more sources

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