Row pairing

It should be noted here that the units of the F-nmr shifts compared to the log (kiko) values are such that sets 15, 16 and 17 are very highly weighted in the determination of the Or scale. In the statistical sense, this weighting is justified by the relatively high precision of the F-nmr shifts. In the physical sense, however, it is not clear that the high weighting is justified. Although F is the weakest pi electron donor of the united-atom-like first-row pair donor... 

A Yes count of 16 would indicate complete degradability of all components at listed conditions - concentration effect shown in row pairs. 

Pt (110) (fee) (2x1) Missing-row model is better than buckled-row, paired-row or saw-tooth models. Terminated-bulk positions assumed for remaining atoms. LEIS/13/... 

A good illustration of the consequences of such bond weakening of metal atom-metal atom bonds upon adsorption is the row pairing phenomenon. This is illustrated in Figure 10.26 for O adatoms adsorbed at high coverage to the (520) or (730) surface of Pt [60]. The calculations refer to electrochemical experiments and hence indicate the electrode potential instead of the O2 pressure that equilibrates O adsorption from the water phase. 

Cu(110) (2xl)-0 XRD no yes 29.0 3.9 0 0.03 0.05 0 -0.34 0.20 0 90F1 atomic adsorption in long bridge sites with missing-row reconstruction and slight second-row pairing away from O sites... 

Ni(110)H- (4xl)-3S XRD no yes 93E2 missing-row-pair reconstruction S adsorbed at hollow sites on remaining-Ni-row pairs and near hollow sites substituting for missing Ni rows buckling of top Ni layers... 

Pe(211) removal of close-packed rows in top laya row pairing in 2nd layer and buckling in 3rd layer adsorption site of H not detomined ... 

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