Chemistry

1403 Submissions

[3] viXra:1403.0946 [pdf] replaced on 2014-06-26 09:34:12

Do Triatomic Molecules Echo Atomic Periodicity?

Authors: Ray Hefferlin, Joshua Barrow
Comments: 20 Pages.

The objective of this work is to test whether vibration frequencies ν1 of free, ground-state, main-group triatomic molecules manifest a periodicity similar to those of atomic spectroscopic constants. This test and an earlier test on energies of atomization underscore the role of the periodic law as a foundation of chemistry. Using data from four data bases and from computation, we have collected and have mapped ν1 data in mathematical spaces of fixed-period molecules. These spaces are 8×8×8 atom cubes with rare-gas molecules on each face. The ν1 collected from various sources might be of use in searches for cold triatomics in interstellar space.
Category: Chemistry

[2] viXra:1403.0943 [pdf] replaced on 2014-06-20 14:17:09

Do Triatomic Molecules Echo Atomic Periodicity?

Authors: Ray Hefferlin, Joshua Barrow
Comments: 20 Pages.

The objective of this work is to test whether vibration frequencies ν1 of free, ground-state, main-group triatomic molecules manifest a periodicity similar to those of atomic spectroscopic constants. This test and an earlier test on energies of atomization underscore the role of the periodic law as a foundation of chemistry. Using data from four data bases and from computation, we have collected and have mapped ν1 data in mathematical spaces of fixed-period molecules. These spaces are 8×8×8 atom cubes with rare-gas molecules on each face. The ν1 collected from various sources might be of use in optical or near-optical searches for cold triatomics in interstellar space.
Category: Chemistry

[1] viXra:1403.0022 [pdf] submitted on 2014-03-05 03:38:21

Chemiosmosis and Microscopic Reversibility: Irreconcilable. Thermodynamic Limitations of Coupled Equilibria and the Role of Atp

Authors: Sosale Chandrasekhar
Comments: 25 Pages.

It is argued that the chemiosmotic theory, in positing the egress and ingress of protons across a membrane via different routes, violates the principle of microscopic reversibility (PMR). The theory was proposed as a mechanism for coupling the exergonic oxidation of NADH to the endergonic synthesis of ATP, believed to be a ready-to-use form of biochemical energy. The key proton-pump mechanism, however, should also operate in reverse by the PMR, hence is unlikely to be valid. Generally, the transfer of free energy via coupled equilibria is problematical, as neither of the coupled processes would go to completion. (However, it may be feasible in the case of entropy-driven reactions, as happens in the reactions of the Krebs cycle that lead to the formation of NADH.) Furthermore, reported thermodynamic data do not support the idea of ATP as a ‘high energy’ molecule, but rather indicate that ATP hydrolysis is driven by release of phosphate. In fact, many of the reactions believed to be thermodynamically driven by ATP hydrolysis are likely exergonic per se. ATP possibly provides part of the activation energy for the reaction in many cases. An alternative (non-equilibrium) mechanism for ATP synthesis is proposed based on the increase in pH that would accompany the oxidation of NADH. This would generate ADP3- and HPO42- which could form ATP4- in a thermodynamically favoured process within hydrophobic pockets.
Category: Chemistry