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Dietrich: Macrocyclic Chemistry, Aspects of Organic and Inorganic Supramolecular Chemistry (VCH, Weihein 1993) [2] D.
Tamburini: Coordination Chemistry Reviews Vol. 248 (2004), p. 1717 [5] N.
Lisowski: Coordination Chemistry Reviews Vol. 249 (2005), p. 2156 [11] M.J.
Sekerci: Journal of Molecular Structure Vol. 751 (2005), p. 200 [15] Liu Guofa, Shi Tongshun, Zhao Yongnian: Journal of Molecular Structure Vol. 412 (1997), p. 75 [16] R.C.
Topacli: Journal of Molecular Structure Vol. 654 (2003), p. 131 [18] A.

Another is the use of the supercritical drying method at the stage of drying the low-temperature sol-gel chemistry synthesized by the traditional method, in which the surface tension of the inboard liquid is zero, which eliminates the deformation of the formed initial structure of the gel frame due to its deformation and collapse during drying [12-14].
Chukin, Structure of aluminum oxide and hydrodesulfurization catalysts.
Ryzhak, Porous structure and strength of aluminum oxide, Kinetics and Catalysis.
Pilipenko (Eds.), Brief Handbook of Chemistry, 5 ed., Naukova Dumka, Kiev, 1987
Sing, Adsorption, Surface Area and Porosity, second ed., Surface Chemistry, Academic Press, 1982.

It is shown that all synthesized coal has a well-developed porous structure, which is determined mainly by micropores.
They allow to achieve a significant increase in specific surface area, pore volume and improved carbon structure.
Malovanyy, L.Tarasova, Оptimization of heat-and-power plants water purification, Chemistry&Chemical Technology. 13(2) (2019) 218–223
[19] Ch.Xia, S.Q.Shi, Self-activation for activated carbon from biomass: theory and parameters, Green Chemistry. 18(7) (2016) 2063-2071
[22] S.M.Yakont, El-Deen G.Sharaf, Characterization of activated carbon prepared by phosphoric acid activation of olive stones, Arabian Journal of Chemistry. 9 (2016) 155-162

Photoresist Removal Using Alternative Chemistries and Pressures Ingu Song 1, a , Christopher Timmons 2,b , Galit Levitin3,c and Dennis W.
Unlike liquid or plasma oxidative approaches for defluorination, radical anion chemistries defluorinate fluorocarbon materials by a reductive mechanism.
MSQ swelling is reasonable due to the open MSQ ladder or cage structure which allows inclusion of molecules such as CO2 [21,22].
A rather unconventional approach to liquid cleaning that invokes reductive chemistries involves the use of radical anions [11-13].
Preliminary results suggest that such reductive chemistries are compatible with organic-doped silicon dioxide low-k materials.

Valdena 3/7, LV-1048, Riga, Latvia 2Faculty of Chemistry, University of Latvia, Jelgavas 1, LV-1004, Riga, Latvia adarta.ubele@rtu.lv, bliene.pluduma@rtu.lv, ckgross@rtu.lv, darturs.viksna@lu.lv Keywords: hydroxyapatite, hydrothermal treatment, fourier transform infra-red spectroscopy, deconvolution, hydroxyl ions Abstract.Thermal spraying is commercially used to produce hydroxyapatite coatings, but the high temperature depletes hydroxyl ions in the structure.
Exposure of a thermal spray coating to steam allows OH- to be re-established in the crystal structure.
This may be attributed to the lower crystalline structure that provides greater flexibility for diffusion throughout the crystal structure.
Krumina from the Inorganic Institute of Chemistry, Riga Technical University for conducting XRD measurements.
Eliott, Structure and Chemistry of the Apatites and Other Calcium Orthophosphates, Volume 18, first ed., Elsevier, London, 1994 [9] K.A.

The water for standard consistency of cement is not linear change with the dosage of chemistry admixtures.
Fig. 1 The effects of chemistry admixtures on water for standard consistency of cement 3.2.
Fig. 3 The effects of chemistry admixtures on cement paste fluidity 3.3.
Structure and performance of cements (Second Edition).
Proceedings of the 10th International Congress on the Chemistry of Cement.1997(3):3iii005

The conventional technologies of the hydrogeological investigation are remote sensing, ground survey, geophysical exploration, drilling, and water chemistry analysis[5].
Based on the ground survey, we can draw the fault structure maps, water system maps, and relief maps.
Water chemistry analysis researches the ion content, salinity, pH value through using chemical methods to analyze groundwater circulation[6].
So we decide to use the structure type of the water percolating preventing and draining.
So we decide to use two structure types of the waterproofing and drainage.

Hydrophobicity of pure silica and silica zirconium nanoparticles Silica zirconium structure (FTIR).
Scherer, Sol-gel science: the physics and chemistry of sol-gel processing: Academic Pr, 1990
Falcaro, P., "X-rays to study, induce, and pattern structures in sol–gel materials," J.
Scherer, "The physics and chemistry of sol-gel processing," Sol-gel science, vol. 141, pp. 58-59, 1990
Wagh, "Preparation and characterization of hydrophobic silica aerogels," Materials chemistry and physics, vol. 53, pp. 13-18, 1998

It has been widely applied in structure and property forecast of many materials.
The structure chart and atom serial number of the compounds studied is shown in Fig.2.
Temperature influence to oxidizing reaction.Using transition state search and quantum chemistry frequency calculation on the basis of optimizing the structure of all the molecules, we can find energy forms such as Etotal (total energy of zero-point vibration) thermodynamic function (enthalpy, entropy and heat capacity), etc.
According to frontier orbit theory [14] in quantum chemistry, when molecules are involved in reaction, their orbits will change.
Performance-structure-bond (Advanced Education Press, Beijing 1987)

Aluminum powder, stannous oxide powder and cuprous oxide powder are used for the preparation of tin oxide nanostructure in combustion synthesis-injection method with the formula designed using combinatorial chemistry method.
Tetragonal structure of SnO2 crystal is stable in thermodynamics and kinetics, which is commonly called rutile structure.
In the XRD patterns of the two samples, the crystal index corresponding to the main diffraction peaks is marked in figure 3(a) and the crystal proves to be SnO2 with rutile structure.
The effect of surface structure on the photo luminescence of SnO2 nanoparticles in hydrosols and organosols[J].
Nano-structured spherical porous SnO2 anodes for lithium-ion batteries[J].