01458nas a2200157   4500008004100000022001400041245012600055210006900181260007100250300001400321490000700335520077200342100002401114700003001138856013201168       2010                        eng d  a0897-475600aMelting characteristics of superlattices of alkanethiol-capped gold nanoparticles: the ``excluded'' story of excess thiol0 aMelting characteristics of superlattices of alkanethiolcapped go  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcMAR  a1680-16850 v223 a<p>Melting characteristics of gold nanoparticle superlattices obtained from nanoparticles capped by alkanethiols of different chain lengths (octane, dodecane and hexadecane) have been investigated. The alkanethrol capped nanoparticles were synthesized by the well-established digestive ripening method It is observed that as the chain length Of the thiol increases, the propensity to form superlattices decreases and the melting of the superlattice is observed at lower temperature However, the Formation of the 3D superlattice is critically dependent on the presence of ``excess'' thiol as determined from thermogravimetric and transmission electron microscope analysis. In the absence of ``excess'' thiol, only 2D hexagonally close-packed arrangements were seen</p>1 aSidhaye, Deepti, S.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/melting-characteristics-superlattices-alkanethiol-capped-gold-nanoparticles-excluded-story-0