Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2011-07-26
2011-07-26
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S013000, C556S113000, C977S830000
Reexamination Certificate
active
07985869
ABSTRACT:
As demonstrated herein, the ligand exchange chemistry of phosphine-stabilized Au11clusters with ω-functionalized thiols is a powerful synthetic method that provides convenient access to a diverse family of functionalized Au11clusters. The general nature of the presented ligand exchange approach, in combination with the ease preparation, makes this approach of broad utility. The approach is general and shows the high tolerance for a wide variety of functional groups. Mechanistic studies provided conclusive evidence that the Au11core of the precursor particle remains intact during ligand exchange and showed that the ligand exchange of these particles follows a different pathway than for ligand exchanges of larger gold nanoparticles such as “Au101(PPh3)21Cl5”. Optical studies of the products show a strong dependence on the nature of the stabilizing thiol ligands.
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Hutchison James E.
Woehrle Gerd H.
Gonzalez Porfirio Nazario
Klarquist & Sparkman, LLP
State of Oregon Acting by and Through the State Board of Higher
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