The conservation of a hydrophobic subsitesite provides a likely explanation why M13 peptidases from distantly related organisms retain the ability to cleave similar substrates, whereas the range of side chains found at the subsitesite might determine the different peptide bond preferences seen between enzymes [ 2, 4, 25, 30].
For monolayer SiGe, Zhou et al. found the same bonding preference as us, and they believed this bonding preference facilitates the synthesis of one-side semihydrogenated SiGe with chair configuration [45].
The influence of the C60 molecule incident energy upon the bonding preference, i.e. sp3, sp2, sp or s is investigated.
The properties of a solid can usually be predicted from the valence and bonding preferences of its constituent atoms.
Similarly, chemically distinct molecules with identical H-bond functions may form different HBSs, leading to the question of how molecular structure and H-bond preferences are correlated with one another.
Tilting also significantly changes the coordination environments of the A-site cations which lead to a 4-coordinate square-planar environment for Cu and a 12-coordinate icosahedral environment for Ca. It is the mismatch in size and the bonding preferences of these two ions and the titanium that drive the large octahedral tilting distortion.
It is evident that H+ attack takes place on the Au C phenyl) bond in preference to the hydride, in agreement with the covalent nature of the Au H bond in 12.
FTIR shows that the decomposition occurs through initial cleavage of P O C bonds in preference to other covalent bonds, which allows dehydration and subsequent charring and/or chain scission.
Corporate investors have backed a scheme under which Lloyds offered to exchange existing bonds and preference shares for a new breed of hybrid securities dubbed "CoCos" (which is short for contingent convertibles).
It is high-stakes stuff because if the proposed restructuring isn't approved by enough of these people holding Co-op Bank bonds and preference shares, the bank is likely to fall under the control of the Bank of England, and/or it could be nationalised or wound down.
