Recent activity by ValentinStec

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What is the relationship between the electronic and magnetic properties of metal-organic frameworks and their crystal structures, and how can this relationship be predicted using quantum chemistry calculations?

asked 1 day ago in Quantum Chemistry

1 answer 19 views

How do the production and usage of solar energy impact the environment in terms of greenhouse gas emissions and waste generation, and what are the methods that can be employed to mitigate these negative effects?

answered 3 days ago in Environmental Chemistry

1 answer 18 views

How do the photochemical properties of lanthanide complexes change with variations in ligand types and coordination geometries?

asked 3 days ago in PhotoChemistry

1 answer 22 views

What is the molecular geometry and bond angles of carbon dioxide (CO2)? Explain how they are determined using quantum chemistry principles.

answered 4 days ago in Quantum Chemistry

1 answer 24 views

What is the impact of temperature on the solubility of a solute in a solvent? Provide detailed explanation and experimental evidence to support your answer.

asked 5 days ago in Physical Chemistry

1 answer 25 views

What are the most effective catalysts to use in the production of ammonium nitrate fertilizer via the Haber process, and how do their properties affect the rate of the reaction and yield of the product?

answered 5 days ago in Chemical engineering

1 answer 21 views

What is the expected acidity of a molecule that contains a carboxylic acid (-COOH) functional group and a tertiary amine (-NR3) functional group? Provide a brief explanation to justify your answer.

answered 5 days ago in Chemical bonding

1 answer 23 views

What is the electronegativity difference between oxygen and nitrogen atoms in a molecule of NO2?

asked 5 days ago in Chemical bonding

1 answer 19 views

How does the degree of chirality affect the photochemical properties of a molecule?

answered 5 days ago in PhotoChemistry

1 answer 28 views

What is the effect of the central metal ion on the spectroscopic properties of metalloporphyrins and metallophthalocyanines? Provide experimental evidence to support your answer.

asked Feb 18 in Coordination Chemistry

1 answer 26 views

How can we predict the binding energy and binding mode of a drug molecule to a protein receptor using quantum chemical calculations of non-covalent interactions?

asked Feb 14 in Computational Chemistry

1 answer 30 views

What is the mechanism by which persistent organic pollutants (POPs) accumulate in the food chain and what are the potential health and environmental risks associated with these compounds?

answered Feb 14 in Environmental Chemistry

1 answer 46 views

What is the effect of incorporating graphene as a conductive filler on the mechanical and electrical properties of polymer composites, and how does the concentration of graphene affect these properties?

answered Feb 13 in Materials Chemistry

1 answer 32 views

What hybrid orbitals are present in the carbon atoms of ethene (C2H4) and how do they contribute to the bonding in the molecule?

answered Feb 13 in Chemical bonding

1 answer 30 views

How does the binding of a transcription factor to DNA regulate gene expression in bacteria?

answered Feb 13 in BioChemistry

1 answer 46 views

How do the photochemical properties of enantiomers differ, and how does this affect their behavior when exposed to light? Provide examples of enantiomers and their differential photochemical behavior in natural and synthetic settings.

asked Feb 13 in PhotoChemistry

1 answer 24 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect the overall function of the protein or enzyme? Provide specific examples to support your answer.

asked Feb 12 in Coordination Chemistry

1 answer 29 views

What are the mechanisms by which Chlorofluorocarbons (CFCs) cause depletion of the ozone layer and how can the rate of this depletion be mitigated or prevented through chemical reactions?

answered Feb 12 in Environmental Chemistry

1 answer 32 views

How can the efficiency of the system for the production of hydrogen fuel in a chemical engineering plant be increased by reducing energy losses and optimizing the reaction conditions?

answered Feb 7 in Chemical engineering

1 answer 29 views

How can the mechanical and physical properties of a polymer be optimized during the processing and manufacturing stage to achieve its desired end-use properties?

asked Feb 7 in Polymer Chemistry

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