scholarly journals From building blocks of proteins to drugs: a quantum chemical study on structure–property relationships of phenylalanine, tyrosine and dopa

RSC Advances ◽  
2014 ◽  
Vol 4 (17) ◽  
pp. 8617 ◽  
Author(s):  
Aravindhan Ganesan ◽  
Narges Mohammadi ◽  
Feng Wang
Keyword(s):  
Quantum Chemical ◽  
Quantum Chemical Study ◽  
Building Blocks ◽  
Chemical Study ◽  
Structure Property ◽  
Structure Property Relationships

scholarly journals Enstatite (MgSiO3) and forsterite (Mg2SiO4) monomers and dimers: highly detectable infrared and radioastronomical molecular building blocks

2019 ◽  
Vol 492 (1) ◽  
pp. 276-282 ◽  
Author(s):  
E Michael Valencia ◽  
Charlie J Worth ◽  
Ryan C Fortenberry
Keyword(s):  
Small Molecules ◽  
Quantum Chemical ◽  
Spectroscopic Data ◽  
Dipole Moments ◽  
Quantum Chemical Study ◽  
Building Blocks ◽  
Chemical Study ◽  
High Energy ◽  
Molecular Building Blocks ◽  
High Level

ABSTRACT Isolated MgSiO3 and Mg2SiO4 molecules are shown here to exhibit bright infrared (IR) features that fall close to unattributed astronomical lines observed toward objects known to possess crystalline enstatite and forsterite, minerals of the same respective empirical formulae. These molecules are therefore tantalizing candidates for explaining the origin of such features. Furthermore, the C2v monomer minima of each formula set have dipole moments on the order of 10.0 D or larger making them desirable candidates for radioastronomical observation as enabled through rotational spectroscopic data further provided in this high-level CCSD(T)-F12/cc-pVTZ-F12 quantum chemical study. Astrophysical detection of these molecules could inform the build-up pathways for creating nanocrystals from small molecules in protoplanetary discs or could show the opposite in explaining the destruction of enstatite and forsterite minerals in supernovae events or other high-energy stellar processes. This work also shows that the lowest energy isomers for molecules containing the geologically necessary elements Mg and Si have oxygen bonded between any of the other heavier elements making oxygen the glue for pre-mineralogic chemistry.

scholarly journals Sulfenamides as Building Blocks for Efficient Disulfide-Based Self-Healing Materials. A Quantum Chemical Study

ChemistryOpen ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 248-255 ◽  
Author(s):  
Fernando Ruipérez ◽  
Maialen Galdeano ◽  
Ekiñe Gimenez ◽  
Jon M. Matxain
Keyword(s):  
Quantum Chemical ◽  
Quantum Chemical Study ◽  
Building Blocks ◽  
Chemical Study ◽  
Self Healing

A quantum chemical study of the acidity of acetylene and 1,2-dihydrobuckminsterfullerene de-rivatives

2018 ◽  
Vol 59 (1) ◽  
pp. 51-53
Author(s):  
M. V. Makarova ◽  
◽  
S. G. Semenov ◽  
R. R. Kostikov ◽  
◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Quantum Chemical Study ◽  
Chemical Study
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