Dictionary

plastosemiquinone en · NOUN

Etymology

Etymology tree English plasto- Proto-Indo-European *sem- Proto-Indo-European *sēmi Latin sēmi-bor. English semi- English quinine Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English quinic German Ketonbor. English ketone English -one English quinone English semiquinone English plastosemiquinone From plasto- + semiquinone.

Meanings

1. Any semiquinone derived from a plastoquinone
   • Also, DFT calculations on the plastosemiquinone anion radical in PSII found the histidine N δ to be the stronger of the two H-bond donors. 47 Therefore, the previous assignments of the hydrogen bond proton couplings for SQ A in PSII are not unambiguous. 46 From a comparative analysis of available nqi data for several semiquinone species and for copper complexes, 17 we find that the protonated imidazole nitrogens of these systems share similar valence orbital occupancies. 2014 July 15, Patrick J. O’Malley, Colin A. Wraight, Sergei A. Dikanov, “Hyperfine and Nuclear Quadrupole Tensors of Nitrogen Donors in the QA Site of Bacterial Reaction Centers: Correlation of the Histidine Nδ Tensors with Hydrogen Bond Strength”, in The Journal of Physical Chemistry. B, volume 118, →DOI:

Forms