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Figure 1 shows the structure faujasite type zeolites which is a representative of zeolite A and X (Si:Al = 1).
The formation and chemical compositions of geopolymers are to certain synthetic zeolites and can be regarded as the amorphous equivalent to zeolites although there is no unique zeolitic crystalline structure [4].
Davidovits [5] pointed out that geopolymers have a three-dimensional structure and belong to the group of zeolites and feldspathoids.
The atomic ratio of Si:Al, Na:Al, H2O:Na2O in geopolymer structures, mineral oxides of starting materials as well as curing temperature plays an important roles in determining the properties and subsequent application [7][8][9][10].
[5] Davidovits, J. (1999), "Chemistry of geopolymeric system, terminology" Geopolymere '99, Saint-Quentine, France, 9-39

Novel Inhibitors for Corrosion Protection of Galvanized Steel Atanas Kurutos1,a*, Neli Boshkova2,b, Nadezhda Tabakova1,c, Sonya Smrichkova2,d and Nikolai Boshkov2,e 1Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad G.
Bonchev str., bl. 9, 1113 Sofia, Bulgaria 2Institute of Physical Chemistry “Rostislav Kaischev”, Bulgarian Academy of Sciences, Acad G.
The anti-corrosion activity of Inhibitor 3 is most likely associated with the pyridine core contained in its structure.
In addition, DABCO also tends to form more complex structures, such as polymer networks and lattices, when in contact with metals and other organic ligands [12].
Späth, A novel set of symmetric methylene blue derivatives exhibits effective bacteria photokilling – a structure–response study, Photochem.

Therefore, the sorafenib structure has been used as a prototype for designing a wide variety of targeted anticancer drugs including HCC drugs, such as lenvatinib, regorafenib, and cabozantinib.
Their chemical structures are depicted in Fig. 1 [10].
Fig. 1 The chemical structures of targeted HCC and other cancer drugs approved by US FDA.
In our research, we are interested in incorporation of the 1,2,3-triazole ring in the sorafenib structure.
Liu, 1, 2, 3-Triazole-containing hybrids as potential anticancer agents: Current developments, action mechanisms and structure-activity relationships, Eur.

The catalytic activity of zeolites is greatly influenced by their structure, pore size, and the uniformity and structure of the micropores.
Therefore, a morphology analysis of zeolite was performed, as shown Fig. 1, to confirm the relationship between their microscopic structure and their catalytic activity.
The chemical structures of the synthesized PEFs were determined by 1H NMR and 13C NMR spectroscopy, as shown in Fig. 3.
This result was attributed to the fact that DM-FDCA has a nonlinear structure with an angle 120° at the difficult-to-rotate furan ring [8, 9].
Gross, Poly(butylene 2,5-furan dicarboxylate), a biobased alternative to PBT: synthesis, physical properties, and crystal structure, Macromolecules 46 (2013) 796−804

To get more detailed information on structure of the annealed samples, the AHL-1000 was sonicated (AHL-D).
The results are shown in Fig. 1 and exhibit formation of layered structure in the annealed samples.
The peak D (≈1355 cm–1) is associated with disordered and defective graphite structure [8, 9].
Near the zigzag edges of honeycomb carbon structures the specific edge π-electron states form, whose energy of peak in the electron density of states is only 25÷30 meV below the Fermi energy [15, 16].
Nakajima, Fluorine-carbon and fluoride-carbon materials: Chemistry, physics, and applications, CRC Press, Boca Raton, Florida, 1994

Indeed, thanks to the high specific surface area and high porosity of nanofibrous structures, the sensitivity and response time of the resulting sensors may be promoted [7].
Moreover, their molecular structure is mostly similar to the structure of dyes applied for textile coloration and pH-indicators may thus show interactions with certain textile fibers.
However, detailed studies on the behavior of halochromic dyes in various textile structures is vital to fully exploit the potential of textile pH-sensors.
A 16 wt% PA 6 solution in 1:1 formic acid:acetic acid and a 14 wt% PA 6.6 solution in 1:1 formic acid:acetic acid were applied to obtain PA 6 and PA 6.6 nanofibrous structures.
Bamfield, Chromic Phenomena, Technological Applications of Color Chemistry, first ed., Royal Society of Chemistry, Cambridge, 2001

Tricalcium silicate exhibits complex polymorphism depending on the temperature and impurities deposited in its structure [6,7].
This results in a negative effect on the crystal morphology and structure of the clinker.
[3] Taylor, H.F.W., Cement chemistry. 2nd ed.
ISBN 0727725920 [4] Hewlett, P., Lea’s Chemistry of Cement and Concrete; Elsevier: Amsterdam, The Netherlands, 2004
[10] Larson, A.; Dreele, R., General Structure Analysis System (GSAS). 2004; pp. 86–748.

Lashkaryov Institute of Semiconductor Physics, Kiev, Ukraine 2Institute of Surface Chemistry, Kiev, Ukraine 3National Technical University “KPI”, Kiev.
Wang, Xi Chen, Luminescent graphene quantum dots as new fluorescent materials for environmental and biological applications, Trends in Analytical Chemistry 54 (2014) 83
Ruiz-Morales, HOMO-LUMO Gap as an Index of Molecular Size and Structure for Polycyclic Aromatic Hydrocarbons (PAHs) and Asphaltenes: A Theoretical Study.
Chhowalla, Atomic and Electronic Structure of Graphene-Oxide, Nano Lett. 9 (2009) 1058
Sagawa, Structure and formation mechanism of blue-light-emitting centers in silicon and silica-based nanostructured materials, Phys.

The other has been used for the initial investigations into development of portable microwave systems for field repair of composite structures [3].
For other materials, such as the titanium alloys widely used in lightweight structures, there is no easy answer.
GHz single mode microwave H-field processing," Materials Chemistry and Physics (2004). 9.
Rachkovskii, "Microwave joining of ZrO2 and Al2O3 ceramics via nanostructured interlayers," in Synthesis, Functional Properties and Applications of Nanostructures, NATO Science Series II: Mathematics, Physics and Chemistry: Vol. 28, ed.
Bruce, "Millimeter-Wave Driven Polyol Processing of Nanocrystalline Metals, Proceedings MRS, Vol. 634, Structure and Mechanical Properties of Nanophase Materials, ed.

The samples have a polycrystalline porous structure made up of particles in the nanometer range.
In some recent publications [18,19], we have reported on the structure of lanthanide-doped yttria samples obtained by propellant synthesis.
The Eu 3+ ion can be usefully employed as spectroscopic probe of the local structure of the sites accommodating Ln 3+ ions in solids. 2.
Lide, “Handbook of Chemistry and Physics”, 82 nd edition, CRC Press, (2002)
Peacock, Structure and Bonding 22, 83 (1975).