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Substitution-newton-Raphson method for the solution of electric network equations
(2006-12-01)
The power flow problem, in transmission networks, has been well solved, for most cases, using Newton-Raphson method (NR) and its decoupled versions. Generally speaking, the solution of a non-linear system of equations ...
Propiedades Físicas y Químicas del Benceno
(2017-08-31)
Benzene is an aromatic hydrocarbon from which a large amount of
organic compounds can be obtained through substitution reactions of
the hydrogens present in the benzene ring.
The aromatic carbon-carbon ipso-substitution reaction
(Wiley VCH Verlag, 2010-12)
The aim of this review is to illustrate what we have dubbed an aromatic carbon-carbon ipso-substitution reaction in which a new Ar-C bond is formed at the expense of another Ar-C bond. The potentiality of several C-based ...
An efficient synthesis of new C-2 aryl substituted quinolines based on three component imino Diels-Alder reaction
(Springer Netherlands, 2008)
The substitution of cations by magnesium in the structure K3Ho(VO4)2
(1998-07-24)
The cation substitutions in the crystal lattice of binary potassium-holmium vanadate (V) K3Ho(VO4)2 by magnesium have been studied using various types of chemical solid state reactions. It was shown that in the presence ...
The substitution of cations by magnesium in the structure K3Ho(VO4)2
(1998-07-24)
The cation substitutions in the crystal lattice of binary potassium-holmium vanadate (V) K3Ho(VO4)2 by magnesium have been studied using various types of chemical solid state reactions. It was shown that in the presence ...
Changes in the SNAr reaction mechanism brought about by preferential solvation
(Royal Soc Chemistry, 2015)
We herein report an experimental and theoretical study on preferential solvation effects for the reactions of 1-fluoro and 1-chloro-2,4-dinitrobenzene towards morpholine in acetonitrile, water and mixtures of them of varying ...
Regiochemical control in the amination reaction of phenanthridine-7,10-quinones
(PERGAMON-ELSEVIER SCIENCE LTD, 2009)
The reaction of substituted phenanthridine-7,10-quinones with amines to construct novel aminophenanthridinequinone derivatives as antitumor agents is described. The regiochemistry of the amination reaction is discussed in ...
Structural, dielectric and ferroelectric properties of Nb-doped PZT thin films produced by oxide precursor method
(2002-01-01)
Recently, was proposed a chemical method for preparation of ferroelectric thin films based on oxide precursors. In this work, PZT thin films were prepared to attest the viability of this method for cation-substitution. In ...