Results 31 to 40 of about 343,710 (341)

Hexane-1,6-diammonium dinitrate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
The hexane-1,6-diammonium cation of the title compound, C(6)H(18)N(2) (2+)·2NO(3) (-), lies across a crystallographic inversion centre and shows significant deviation from planarity in the hydro-carbon chain. This is evident from the torsion angle of -64.0°(2) along the N-C-C-C bond and thse torsion angle of -67.1°(2) along the C-C-C-C bonds.
Gert J. Kruger, Charmaine van Blerk
openaire   +3 more sources

Charge-transfer photodissociation of adsorbed molecules via electron image states

open access: yes, 2007
The 248nm and 193nm photodissociation of submonolayer quantities of CH$_3$Br and CH$_3$I adsorbed on thin layers of n-hexane indicate that the dissociation is caused by dissociative electron attachment from sub-vacuum level photoelectrons created in the ...
E. T. Jensen, Lide D. R.
core   +1 more source

Highly-functionalised difluorinated cyclohexane polyols via the Diels–Alder reaction : regiochemical control via the phenylsulfonyl group [PDF]

open access: yes, 2005
A difluorinated dienophile underwent cycloaddition reactions with a range of furans to afford cycloadducts whichcould be processed regio- and stereoselectively via episulfonium ions, generated by the reaction between their alkenyl groups and ...
Crowley, Patrick J   +5 more
core   +1 more source

4,4′-(Hexane-1,6-diyldioxy)dianiline [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
The complete molecule of the title compound, C(18)H(24)N(2)O(2), is generated by a crystallographic inversion centre. The torsion angles in the hexa-methyl-ene chain are consistent with an anti-periplanar conformation, whereas the conformation of the O-CH(2)-CH(2)-CH(2) unit is gauche.
Khan, Muhammad Saif Ullah   +4 more
openaire   +4 more sources

Removal of dimethylsulfide, n-hexane and toluene from waste air in a flat membrane bioreactor under continuous conditions [PDF]

open access: yes, 2013
Dimethylsulfide (DMS), n-hexane and toluene removal from a waste air was carried out by using a flat composite membrane bioreactor under continuous feeding conditions.
Heynderickx, Philippe   +3 more
core   +1 more source

Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]

open access: yes, 2013
The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M.   +7 more
core   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

Hexane-1,6-diammonium hexafluorosilicate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2013
The asymmetric unit of the title organic–inorganic molecular salt, C6H18N2 2+·SiF6 2−, consists of one anion and one cation together with half of each of two cations and two anions located on inversion centres. The SiF6 2− octahedral anions are arranged to form sheets parallel to (011), which are ...
A. Ouasri   +3 more
openaire   +3 more sources

Hexane neem leaf extract more potent than ethanol extract against Aspergillus flavus [PDF]

open access: yesUniversa Medicina, 2014
Background Aspergillus flavus is one of the causes of aspergillosis, with a high virulence and resistance to standard antifungals, resulting in a high mortality rate. Medicinal plants are increasingly used as they are relatively safer with minimal side
Jenny Hidayat   +3 more
doaj   +3 more sources

Total syntheses of conformationally-locked difluorinated pentopyranose analogues and a pentopyranosyl phosphate mimetic [PDF]

open access: yes, 2007
Trifluoroethanol has been elaborated, via a telescoped sequence involving a metalated difluoroenol, a difluoroallylic alcohol, [2,3]-Wittig rearrangement, and ultimately an RCM reaction and requiring minimal intermediate purification, to a number of ...
Miles, Jonathan A. L.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy