Correlation confinement resonances

Figure 3.24. Stages in the interaction between two molecules, and A, showing the effects of electron correlation and the equivalent resonance structures a) no interaction, the electrons are spin paired and confined to the orbital of B (b) weak interaction (e.g., a transition structure), the electrons can separate into a larger volume of space (c) strong interaction, a bond is formed and the electron distribution is again confined.

Figure 9.3 Mip-mediated surface water displacement from polystyrene (PS). PS beads were labeled with tethered nitroxide spin labels. Upon excitation during electron spin resonance, polarization was transferred to the surrounding water molecules within 15 A. Polarized water molecules present relaxation correlation times (t in Table inset) that reflect the local environment. Longer times denote more confinement and lower diffusivily. Only one adhesive protein, mfp-3s, is capable of increasing the surface water relaxation time, presumably by adsorbing directly onto the PS surface. Mfp-3s is notable for having a high hydrophobicity (inset table), as indicated by the negative hydropathy value, which denotes a normalized per average free energy of transfer from water to the non-polar solvent Data from ref. 22.

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