scholarly journals Synthesis, Molecular Structure and Cytotoxicity of Molecular Materials Based on Water Soluble Half-Sandwich Rh(III) and Ir(III) Tetranuclear Metalla-Cycles

Materials ◽  
2013 ◽  
Vol 6 (11) ◽  
pp. 5352-5366 ◽  
Author(s):  
Gajendra Gupta ◽  
Benjamin Murray ◽  
Paul Dyson ◽  
Bruno Therrien
Keyword(s):  
Molecular Structure ◽  
Water Soluble ◽  
Molecular Materials ◽  
Half Sandwich

ANALISA KANDUNGAN BETA-GLUKAN LARUT AIR DAN LARUT ALKALI DARI TUBUH BUAH JAMUR TIRAM (Pleurotus ostreatus) DAN SHIITAKE (Lentinus edodes)

2013 ◽  
Vol 13 (3) ◽  
Author(s):  
Netty Widyastuti ◽  
Teguh Baruji ◽  
Henky Isnawan ◽  
Priyo Wahyudi ◽  
Donowati Donowati
Keyword(s):  
Molecular Structure ◽  
Molecular Weight ◽  
Immune System ◽  
Pleurotus Ostreatus ◽  
Water Soluble ◽  
Low Molecular Weight ◽  
Lentinus Edodes ◽  
Beta Glucan ◽  
Oyster Mushrooms ◽  
The Difference

Beta glucan is a polysaccharide compound, generally not soluble inwater and resistant to acid. Beta glucan is used as an immunomodulator (enhancing the immune system) in mammals is usually a beta-glucan soluble in water, easily absorbed and has a low molecular weight. Several example of beta-glucan such as cellulose (β-1 ,4-glucan), lentinan (β-1 0.6-glucan) and (β-1 ,3-glucan), pleuran (β-1, 6 and β-1 ,3-glucan) are isolated from species of fungi Basidiomycota include mushrooms (Pleurotus ostreatus) and shiitake (Lentinus edodes).The purpose of thisresearch activity is to obtain beta-glucan compound that can be dissolved in water and in alkali derived from fungi Basidiomycota, i.e, Oyster mushrooms (Pleurotus ostreatus) and shiitake (Lentinus edodes). The result of beta-glucan compared to characterize the resulting beta glucan that is molecular structure . The difference of beta glucan extraction is based on the differences in solubility of beta-glucan. Beta glucan could be water soluble and insoluble water.

On eccentricity-based topological descriptors of water-soluble dendrimers

2018 ◽  
Vol 74 (1-2) ◽  
pp. 25-33 ◽  
Author(s):  
Zahid Iqbal ◽  
Muhammad Ishaq ◽  
Adnan Aslam ◽  
Wei Gao
Keyword(s):  
Molecular Structure ◽  
Chemical Properties ◽  
Topological Indices ◽  
Water Soluble ◽  
Connectivity Index ◽  
Topological Descriptors ◽  
Physical And Chemical Properties ◽  
Eccentric Connectivity Index ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractPrevious studies show that certain physical and chemical properties of chemical compounds are closely related with their molecular structure. As a theoretical basis, it provides a new way of thinking by analyzing the molecular structure of the compounds to understand their physical and chemical properties. The molecular topological indices are numerical invariants of a molecular graph and are useful to predict their bioactivity. Among these topological indices, the eccentric-connectivity index has a prominent place, because of its high degree of predictability of pharmaceutical properties. In this article, we compute the closed formulae of eccentric-connectivity–based indices and its corresponding polynomial for water-soluble perylenediimides-cored polyglycerol dendrimers. Furthermore, the edge version of eccentric-connectivity index for a new class of dendrimers is determined. The conclusions we obtained in this article illustrate the promising application prospects in the field of bioinformatics and nanomaterial engineering.

Preparation of Water-Soluble Soy Protein-Based Surfactants by Oxidizing Disulfide Bonds

2011 ◽  
Vol 236-238 ◽  
pp. 63-66
Author(s):  
Jun Sheng Li ◽  
Wei Jing ◽  
Liu Juan Yan ◽  
Li Na Li
Keyword(s):  
Molecular Structure ◽  
Surface Activity ◽  
Disulfide Bond ◽  
Soy Protein ◽  
Disulfide Bonds ◽  
Water Soluble ◽  
Performic Acid ◽  
Protein Surface ◽  
Emulsifying Property ◽  
Oxidation Damage

In this paper, the correlations between the cleavage degree of disulfide bonds and soy protein surface activity had been studied in order to show the surface activity of soy protein. The disulfide bonds of soy protein were oxidized to sulfonic groups by performic acid. The distribution of polar and nonpolar groups, and the molecular structure of soy protein were changed because of the oxidation damage of disulfide bonds, and these changes led to changes in surface activity of soy protein. The results showed that the emulsifying property of soy protein was improved by oxidizing the disulfide bonds of protein compared with that of natural soy protein. The change of soy protein emulsifying property is closely related with the degree of the disulfide bond oxidation damage,and that was also an effective way to prepare the protein-based surfactant.

Study of Molecular Structure of Water-Soluble Phenolic Resin with Different Molecular Weight by Infrared Spectrum

2014 ◽  
Vol 900 ◽  
pp. 15-19 ◽  
Author(s):  
Xing Lei ◽  
Gui Long Xu ◽  
Jin Yang ◽  
Jian Hu
Keyword(s):  
Molecular Structure ◽  
Molecular Weight ◽  
Infrared Spectrum ◽  
Sodium Hydroxide ◽  
Phenolic Resin ◽  
Addition Reaction ◽  
Early Stage ◽  
Water Soluble ◽  
Structure Of Water ◽  
Different Molecular Weight

Water-soluble phenolic resin was prepared using sodium hydroxide and ammonia as catalysts. The molecular structure of water-soluble phenolic with different molecular weight was studied by infrared spectrum and the mechanism was discussed. The results show that addition reaction and polycondensation synchronize in the reaction process, while addition reaction dominates in the early stage while polycondensation dominates in the later stage.

Synthesis of water-soluble zinc(ii) nitrilotris(methylenephosphonate). Molecular structure of bis(4-carboxyphenylaminium) nitrilotris(methylenephosphonate) dihydrate

2020 ◽  
Vol 69 (9) ◽  
pp. 1778-1788
Author(s):  
V. V. Semenov ◽  
N. V. Zolotareva ◽  
B. I. Petrov ◽  
N. M. Lazarev ◽  
O. V. Novikova ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Water Soluble ◽  
Soluble Zinc

scholarly journals Synthesis, Molecular Structure, and Reactivity of a Half-Sandwich Vanadium(III) Imido Complex: The First Vanadium(V) Alkylidene

1994 ◽  
Vol 13 (8) ◽  
pp. 2922-2924 ◽  
Author(s):  
Jan-Karel F. Buijink ◽  
Jan H. Teuben ◽  
Huub Kooijman ◽  
Anthony L. Spek
Keyword(s):  
Molecular Structure ◽  
Half Sandwich

Synthese und Molekülstruktur der dreikernigen Cluster-Verbindung (η5C5Me5)IrFe2(CO)9 / Synthesis and Molecular Structure of the Trinuclear Cluster Compound (η5-C5Me5)IrFe2(CO)9

1981 ◽  
Vol 36 (9) ◽  
pp. 1053-1059 ◽  
Author(s):  
Ernst Guggolz ◽  
Manfred L. Ziegler ◽  
Willibald Kalcher ◽  
Johann Plank ◽  
Doris Riedel ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Cluster Compound ◽  
The Novel ◽  
X Ray Diffraction ◽  
Sandwich Complex ◽  
X Ray ◽  
Trinuclear Cluster ◽  
Half Sandwich

Abstract Reaction of triirondodecacarbonyl (1) with the dinuclear chloroiridium complex [(η5 -C5Me5)Ir(μ-Cl)Cl]2 (2) in benzene at 50 °C yields the novel mixed iron iridium cluster of composition (η5 -C5Me5)IrFe2(CO)9 (8) the molecular structure of which has been established by X-ray diffraction methods. The mononuclear half-sandwich complex (η5 -C5Me5)Ir(CO)2 (4) present in the reaction mixture was found to represent the immediate precursor of the cluster compound 8.

Synthesis and Molecular Structure of a Water-Soluble, Dimeric Tri-Titanium(IV)-Substituted Wells–Dawson Polyoxometalate Containing Two Bridging (C5Me5)Rh2+ Groups

2015 ◽  
Vol 54 (23) ◽  
pp. 11105-11113 ◽  
Author(s):  
Yusuke Matsuki ◽  
Takahiro Hoshino ◽  
Shoko Takaku ◽  
Satoshi Matsunaga ◽  
Kenji Nomiya
Keyword(s):  
Molecular Structure ◽  
Water Soluble
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