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crystal water
It was found that the reaction of the crystal water of LnCl3 · 6H2O with (RO)nAlCl3-n resulted in the partial dehydration of the crystal hydrates with the formation of an alcohol (ROH) and the LnCl3 · 3H2O · 3(RO)mAl(OH)Cl2-m complex (m = 1, 2).
      
The structure is built of the anionic layers [(NpVO2)2(NpVIO2)(MoO4)5]6n-n with the Na+ cations and crystal water molecules between them.
      
In the crystals of I and II, the complex cations and the outer-sphere [BF4]- anions (and the crystal water molecules in I) form elaborate hydrogen bonding system.
      
The crystal structure of the compound is composed of the [(NpO2)(CrO4)(H2O)]n layers and the crystal water molecules located between the layers.
      
The structure consists of isolated complex AlF3(H2O)3 molecules and molecules of crystal water linked via a network of Al-F?HOH and Al-OH2?OH2 hydrogen bonds.
      
Complex cations, anions Cl-, and crystal water molecules are linked together through a branched system of hydrogen bonds.
      
The crystals of II are built of centrosymmetric complex cations [Cu(Im)6]2+ (Cu(1)-N, 2.469, 2.021, and 2.056 ?), centrosymmetric trinuclear complex anions {;Cu(Im)4[Cu(Edta)(Im)]2}2-, and crystal water molecules.
      
Two mechanisms are discussed for both removal of crystal water and liberation of free phosphoric acid.
      
The structural units of crystal I are large complex dicitratoborate anions with a spirane structure, 4-aminoquinolinium cations and crystal water molecules.
      
The new compound obtained was identified and characterized by the method of X-ray diffraction and the thermal analysis methods of thermogravimetry-differential thermogravimetry (TG-DTG), and it loses its crystal water in two steps from 325 to 511 K.
      
The number of crystal water in the HPA was affected obviously by the N-substituents of the organophosphonic acids.
      
Its TG curve demonstrated that the crystal water was lost (i.
      
At the temperature of 243°C the process of dewatering came to the end and the sum of lost crystal water reaches 33.30 wt%.
      
On the other hand some properties of Rochelle Salt point out that at room temperature rather high concentrations of crystal water defects are present.
      
Therefore the dependence of the relaxation strengths on the content of crystal water is investigated in the case of two different dispersions.
      
Estimation of crystal water contents and dehydration enthalpies in a novel series of Cu(II) and Ni(II) chelates based on tetrami
      
The Monte Carlo water molecules yield a smaller standard R-value (0.166) than using a homogeneous electron density for the simulation of the crystal water (R = 0.212).
      
From differential scanning calorimetry we conclude that the crystal water present in most films strongly affects the local order of the corner sharing octahedra.
      
An atomic model of the dynamics of crystal water, at room temperature and on a time scale shorter than about 500?ps, is proposed, based on the direct comparison of neutron crystallography and incoherent quasi-elastic neutron scattering results.
      
The most important process seems to be the low-temperature-oxidation of Fe2+ which (at the chosen temperatures of 250 °C and 350 °C) is caused by loss of crystal water.
      
 

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