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In the room-temperature EPR spectra of polycrystalline-powder samples (Figure 1.b) no evidence of hyperfine structure is found.
In the crystal, the [MO(C6F5)4]− anions exhibit square-pyramidal structures with the oxide ligand in the apical position, as established by single-crystal X-ray diffraction methods.
Bochmann, Advanced Inorganic Chemistry, 6th ed., Wiley: New York, 1999.
Young, in Encyclopedia of Inorganic Chemistry, 2nd. ed., R.

Because of its internal cross-linking structure is not completely destroyed, to a certain extent such a structure limit the movement of the surface of molecular chain, therefore, the surface of the powder is inert[4], it goes against the combination between the rubber power and the wood.
Publish House of Chemistry Industry, Beijing
Wood Adhesive Chemistry & Technology [M].Marcel Dekker.NewYork:1983.295.

The α phase crystallizes in the structure HC, and phase β on CCC.
The phases identified containing titanium along with the elements mentioned above form crystalline structures HC.
Radiation chemistry in the field of biomaterials.
Revista Radiation Physics Chemistry, Britain, v. 46, n. 2, p. 159-160 (1995)

Design of Magnetic Fluid Sealing Device and Computer Simulation in Sintering Machine Ming Hua BAI 1,a, Qing Rong LIU 2,b and Hong Liang ZHOU 3,c 1College of Environment &Chemistry Engineering,Yanshan University,Qinhuangdao 066004,China 2College of Environment &Chemistry Engineering,Yanshan University,Qinhuangdao 066004,China abmh@ysu.edu.cn, bliuqingrong2460@sina.com,czhlyd1983@163.com Keywords: Sintering Machine, Air Leakage, Magnetic Fluid, Seal, Numerical Simulation Abstract.
Mechanism and Diagram of Magnetic Fluid Sealing 1 Vent 2 Intake 3 Cover 4 Magnetic fluid 5 Dust sealed baffle 6 Non-magnetic sealing groove 7 Permanent magnets 8 Rigid stents Fig. 1 Structure diagram of magnetic fluid sealing Magnetic fluid sealing media is in reinforced seal grooves, dust sealed baffle is placed in the middle of the device, and two strips of permanent magnets are placed relatively on the rigid frame embedded inside of the non-magnetic sealing groove.
[3] M.H.Bai :Sintering machine calculation principle and design of new structures, Machinery Industry Press 1996

The typical X-ray diffraction (XRD) pattern revealed their crystalline structures and phase composition.
As shown in Fig. 1E, all of the reflections were indexed to cubic structure of magnetite, in good agreement with the reported data (JCPDS standard card No. 01-082-1533).
Hao: The Journal of Physical Chemistry C.
Morales: The Journal of Physical Chemistry B.

Analysis of Structural Features of Humic Acids Fractions after Mechanochemical Modification MIRZOBEKZODA Malika P. 1,a, MALTSEVA Elizaveta V. 2,b and SHEKHOVTSOVA Natalya S. 1,a 1Tomsk Polytechnic University, 30, Lenina avenue, Tomsk, 634050, Russia, 2Institute of Petroleum chemistry SB RAS, 4, Academichesky avenue, Tomsk, 634021, Russia, amalika.mirzobekova@mail.ru, bmaltseva2@gmail.com, cnssh@tpu.ru Keywords: humic acids, fraction, gray humic acids, brown humic acids, mechanoactivation, IRS, 1H MRS, composition, acid-base properties.
The most important effect of modification is on BHAs yield, where aromatic bounds prevail in the structure.
After the modification we observed the increase of the spectral ratios (GHA3, BHA3, BHA4), which indicates an increase of the alkyl fragments proportion in the structure.
Zalov, Environmental Chemistry, A Study Guide, Irkutsk State University, Irkutsk, 2006 (in Russian)

The structure and thermal stability of nanocomposites were investigated by XRD, FT-IR and thermogravimetry (TG).
The structure of nanocomposites was characterized by X-ray diffraction (XRD) and fourier transform infrared spectrometry (FT-IR).
The FT-IR spectroscopy was used to characterize the structure of TDI-MMT and nanocomposites.
Chinese Journal of Applied Chemistry Vol. 22(2005) p. 346-348 [4] M.
Chemistry of Materials Vol. 7(1995) p. 1597-1600

The Zn-MOF has been known to have several structures e.g.
The MOF-69 type phases, Zn3(OH)2(bdc).2DMF, have been obtained instead of expected MOF-5 structure.
Further investigation is needed to reveal the exact structure of the synthesized Zn-MOF.
Furthermore, any further MnO2 addition have changed the Zn-MOF structure.
Yaghi, “The chemistry and applications of metal-organic frameworks,” Science, vol. 341, no. 1, 1–12, 2013

A study on the structure of novel polyurethanes derived from g-valerolactone-based diol precursors Mochamad Chalid1,a, Hans J.
Polyurethane chemistry is extensive and well developed.
The latter is thus achieved by varying the chemical structures and molecular weights of both the poly-ol and diisocyanate compounds.
Figure 3 showed all peaks, which are in agreement with the structure of P1-4.
Figure 3. 1H-NMR and 13C-NMR spectra of P1-4 in DMSO-d at rt Study of structures.

Micro- and nanotopography as well as the surface chemistry of biomaterials affect cell adhesion, proliferation and cell differentiation.
The cells are able to perceive the surface structures in their environment and respond to given structures with changes in their behavior [2,3].
In short fibers the actin organization adapted to the structure of the underlying surface.
The overall pillar structure was successfully sputtercoated with 100 nm titanium [6,18].
At this point, no influence of the surface structure is visible.