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There are a variety of porphin which has different structures, complex and diverse functions.
Porphyrin occupies a very important position in the fields of biology, physics, chemistry and medicine.
Porphyrin is a life chemistry component for creatures.
Different porphyrin has a different molecular structure and the energy level structure, therefore a quantitative or qualitative analysis can be made by measuring the fluorescence spectra.
Applied Aspects Of The Chemistry Of The Porphyrins(J).

The Synthesis and Ion-exchange Property of Li+ Memorized Inverse Spinel Al2.6667Ti(PO4)4 Jinhe Jiang MicroScale Science Institute , Department of Chemistry and Chemical Engineering ,Weifang University, Weifang, 261061,China Corresponding author.
In this paper, the discussion is about the synthesis, structure and ion exchange of the Al-Ti composite oxide inorganic ion exchanger of Li+ with the ability of memory and inverse spinel structure.
The structure of compound metal oxide Al2.6667Ti(PO4)4 crystallized at 770℃ was much perfect.
Rare Metal. 1999,18(2),143 [2] Z.S.Peng, Y.S.Yan, C.Y.Jiang, C.R.Wan, H.C.Gao: Advance on extraction lithium from salt lake, J.Chemistry Online. 1997,(12),11 [3] Y.F.Liu, Q.Feng, Kenta Ool: Li extraction/insertion reaction with LiAlMnO4 and LiFeMnO4 spinels in the Aqueous phase, J.Journal of Colloid and Interface Science. 1994,163(1),130 [4] H.Zhong: Prpperty of H2TiO3 type ion-exchangers and extraction of lithium from brine of natural gas wells, J.Chinese Journal of Applied Chemistry. 2000,17(3),307

The nanosheet structure for LVO-500 shows a layered nanosheet structure which is more organized compared to other samples.
Guo, “Structure and electrochemical performance of LiV3O8 synthesized by solid-state routine with quenching in freezing atmosphere,” Materials Chemistry and Physics, vol. 114, no. 2–3, pp. 915–919, Apr. 2009
Peng, “LiV3O8 nanowires with excellent stability for aqueous rechargeable lithium batteries,” Materials Chemistry and Physics, vol. 161, pp. 211–218, Jul. 2015
Cao, “Mo-doped LiV3O8 nanorod-assembled nanosheets as a high performance cathode material for lithium ion batteries,” Journal of Materials Chemistry A, vol. 3, pp. 3547–3558, 2015
A., Wu X., Dawei L., Jie X., Guosheng Li., “Nanosheet-structured LiV3O8 with high capacity and excellent stability for high energy lithium batteries,” journal of material chemistry, vol. 21, pp. 10077–10084, 2011

Food Chemistry. 72(2001) 145-171
Journal of Agricultural and Food Chemistry. 59(2011) 5589-5594
Journal of Agricultural and Food Chemistry. 59(2011) 8789-8795
Food Chemistry. 130(2012) 20-23
Food Chemistry. 125(2011) 456-463.

The structure formed is predominantly cubic, with few defects present in the particles.
Although regular structures with few defects have been obtained, due to their size these particles can not be considered nanostructures.
Srivastava: Materials Chemistry and Physics Vol. 148 (2014), p. 1064
Yang: Materials Chemistry and Physics Vol. 166 (2015), p. 176
Shi, Solvo- or hydrothermal fabrication and excellent carbon dioxide adsorption behaviors of magnesium oxides with multiple morphologies and porous structures, Materials Chemistry and Physics 128 (2011) 348–356.

Таnаnаеv, Germanium Chemicals, Chemistry, Moscow, 1967
Tchurbakov, Interaction of ferrous oxide and germanium dioxide, Journal of Inorganic Chemistry. 9(4) (1964) 917-920
Zagrebin, Electronic structure of crystalline FeSi and FeGe, Journal of Structural Chemistry. 30(6) (1998) 1098-1102
Sokolskii, Microlumpy structures of binary melts 3d-transition metals with germanium.
Series "Mathematics, Physics, Chemistry". 19(91) (2007) 118-121

Effects of graphene oxide on the structure of human γ-globulins Ru Feng, Yanpeng Jiao*, Changren Zhou Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, China tjiaoyp@jnu.edu.cn Keywords: Graphene oxide, γ-Globulins, Structure Abstract.
The results showed that GO could alter the secondary structures and conformation.
Materials and methods Materials .The purchased GO powder (Chengdu Organic Chemistry Co., Ltd.
Summary In this work, we studied the effects of the GO on the structure of γ-globulins.
It was found that GO could complex with γ-globulins to alter the secondary structures and conformation of protein.

For modeling, the software complex HSC Chemistry 6.12 developed by Outokumpu Research Oy (Finland) was used.
Actuality, Scientific Significance A review of the scientific literature shows that much work on the use of boron in metallurgy is devoted to its effect on the structure and properties of the processed metal (steel, etc.) [1-13].
This steel receives a favorable structure and improved magnetic properties.
Calculations of TM were carried out using the software package HSC 6.12 Chemistry (Outokumpu), based on the minimization of Gibbs energy and the variational principles of thermodynamics [22].
Roine, Outokumpu HSC Chemistry for Windows.

Structure and Thermal Expansion Behavior of Dy2-xGdxMo4O15 Solid Solution M.M.
Hu 2,b 1 China Institute of Atomic Energy, Beijing 102413, China 2 College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China a wmm04b@mails.gucas.ac.cn, bhuzq@gucas.ac.cn Keywords: X-ray diffraction; Crystal structure; Thermal expansion; Molybdates Abstract.
These compounds all crystallize in monoclinic structure with space group P21/c.
The correlation between thermal expansion and crystal structure was discussed.
Description of Dy2-xGdxMo4O15 structure.

Those components with a π key in their molecular structures are prone to the ozone oxidation aging.
Chemical Molecular Structure of Asphalt Chemical molecular structure of asphalt reprsents structural shape of its molecules.
Fine Chemicals Chemistry (1999).
Organic Chemistry (1993).
Beijing: Chemistry Industry Press. 55-106.