Add time:07/26/2019 Source:sciencedirect.com
Bis(tri-n-butyltin) oxide quickly reacts with chromatographic silica gel even when a solution of this oxide is filtered through silica gel, which results in stannylation of a fraction of the surface hydroxyl groups of silica gel to give n-Bu3SnOSi° moieties. The calculated surface density of these moieties, 0.85 Sn groups per nm2, corresponds to complete coverage of silica gel surface with n-Bu groups.
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