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Layered lanthanide silicates also offer the potential for host-guest chemistry, affording efficient luminescent materials and allowing finetuning of properties.
Structures are viewed down the [001] axis (dark TiO6 octahedra and gray SiO4 tetrahedra).
Structure of montregianite-type materials.
Polyhedral representation of Na4.8Ce2Si12O30·4H2O structure.
Barrer: Hydrothermal Chemistry of Zeolites (Academic Press, New York 1982)

With regard to chemistry and structure the natural chalkstone is a high quality raw material, at that the lime is produced from it without overburning and its heat treatment is related to fuel rate reduction.
As to the chemistry the chalk rock may be used as a fluxing additive in iron-ore pellet production.
Consistent increase of the melt amount in the sample structure (over 20 – 25 %) results in very intense sample shrinkage at the temperatures of about 1190oC.
At further heating the material melting process begins with formation of large amount of liquid phase and layer structure decomposition.
Evtushenko, Chalkstone Chemistry and Process, Stroyizdat, Moscow, 1977

Engineering Chemistry, St.
Supramolecular chemistry course compounds, Leningrad, 1990.
"Development of Technical Chemistry in Ukraine", Kharkov,KhSART, 1997, pp. 363-367.
Bulletin of NTU "KhPI", 2003, V.15 "Chemistry, technology and ecology", pp.66-74.
,Levitsky, M.M.Chemistry of dielectrics, Moscow, Vishashkola, 1970, 332 p.

Cadmium ferrite has a normal spinel structure with Cd2+ ions occupy the tetrahedral (A) sites [36].
Therefore, the appearance of these two bands confirmed the formation of spinel structure ferrite.
International Journal of Pharmaceutical Chemistry, 4(3), 2014,88-91
[36] Nayak P.K., Synthesis and characterization of cadmium ferrite, Materials Chemistry and Physics 112, 2008, 24-26
Physics and Chemistry of Solid State, 24(1), 2023, 77-83

Synthesis of a Highly Chained Polymeric Connecting in the Structure of a Multilayered Package for Garments  S.А.
Krestov Institute of Solution Chemistry of the Russian Academy of Science, Academicheskaya St., 1, Ivanovo, 153000, Russia. 2Textile Institute of Ivanovo State Polytechnic University, Sheremetevskiy Avenue, 21, Ivanovo, 153000, Russia.
Chemistry of adhesive interactions is known to come to the formation of multiple hydrogen bonds between fiber-forming and binding polymers.
The material structure uses two types of polymer preparations: a hot-melt glue polymer and a reinforcing polymer.
Development of reinforced composite materials with a nanoporous textile substrate and a brush-structured polymer interfacial layer / Russian Journal of General Chemistry. 2017, 87 (6): 1428-1438.

The structures, molecular weights and polydispersity index (PDI) of PVBCOH and PVBC-b-PLA were characterized by 1H-NMR, and GPC, respectively.
Because of their self-assembly and the wide array of accessible block structures, block copolymers offer excellent properties for the structural control of materials at the nanoscopic length scale[1].
We characterized this polymer using nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC) to confirm both the structure and molecular weight.
LTD, 4-hydroxy-TEMPO (HTEMPO, 98%) and Tin2-ethylhexanoate (Sn(Oct)2, 95%) were purchased from Aladdin Chemistry CO.
We characterized the polymers using nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC) to confirm both the structure and molecular weight distribution.

The crystal structure, morphology and optical property of ZnO nanoparticles were characterized by XRD, SEM and UV-Vis spectrophotometer, respectively.
The crystal structure of ZnO nanoparticles was characterized by X-ray diffractometer (X’Pert, Philips).
Results and Discussion Structural properties The effect of PEG600 diacid concentrations on the crystal structure was studied by XRD and the result is given in Fig.1.
Based on Fig. 1, it was evident that the calcined ZnO nanoparticles exhibited the hexagonal wurtzite structure in good agreement with the JCPDS-card number of 36-1451.
Acknowledgement The authors would like to be thankful the Center of Excellence for Innovation in Chemistry (PERCH-CIC), Office of the Higher Education Commission, Ministry of Education.

The structure and composition of copolymers were characterized by 1H-NMR and elemental analysis.
In recent years, the synthesis, structure and properties of optically active polymer have been paid attention by scientists owing to its potential applications in chiral separation, asymmetric adsorption, chiral synthesis[1].
All of these results proved that the “click” chemistry was performed with excellent conversion and was a novel tool for ligation of our precursor and amino acids to get chiral amphiphilic diblock copolymers bearing amino acid.
Fig. 3 TEM images of MPEO-b-PGTP micelles Conclusions In summary, “click” chemistry was adopted to immobilize of N3-amino acid onto alkyne-modified amphiphilic diblock copolymer, which provided a convenient way to generate various chiral amphiphilic diblock copolymers bearing amino acid.
Ma, “Microdomain structure and dynamics of poly(L-alalline)-b-poly (ethylene glycol) monomethyl ether diblock copoloymer characterized by high resolution solid—state NMR,” Chemical Journal of Chinese Univesties-Chinese,vol. 24, no. 8, pp.1515-1518, 2003

Introduction In chemistry and materials science, the architectural manipulation of nano/microscaled materials with well-defined morphologies and tunable sizes remains the research focus [1,2].
Among the various nano/microstructures, hollow spheres currently represent one of the fastest growing areas in comparison with other structures [3].
The structure, morphology, and luminescence properties were investigated in detail.
Moreover, one can observe a small quantity of ruptured hollow spheres, which can provide evidence that the spheres are of hollow structure.
The morphology, crystal structure, and luminescence properties of the as-obtained hollow microspheres were characterized by XRD, FT-IR, SEM, TEM, and PL, respectively.

Structure analysis of synthesized RTILs.
Structure analysis of RTILs Figure 4.
Inorganic Chemistry, 1982. 21(3): p. 1263-1264
Inorganic Chemistry, 1982. 21(3): p. 1263-1264
Pure and Applied Chemistry, 2001. 73(8): p. 1309-1314.