@article{sharma_kim_cameron_lyndon_gorman_2010, title={Dendritically Encapsulated, Water-Soluble Fe4S4: Synthesis and Electrochemical Properties}, volume={49}, ISSN={["0020-1669"]}, DOI={10.1021/ic1002447}, abstractNote={Amphiphilic, Fe(4)S(4) cluster core dendrimers can be prepared via ligand exchange with dendrons containing carboxylic acid peripheral groups and a thiol focal group. These amphiphilic dendrons are more susceptible to oxidative disulfide formation than their non-amphiphilic analogues reported previously. Thus, an in situ deprotection of an aromatic thioacetate was necessary to prepare the dendrimers. These molecules showed the expected decrease in rate with increasing generation. A slower rate of heterogeneous electron transfer was found when these molecules were compared with non-amphiphilic analogues. This behavior correlated with their larger size and thus a larger effective distance of electron transfer. Voltammetry in DMSO with added water makes the dendrimers easier to reduce, but the change in redox potential is much smaller for all dendrimers when compared to a non-dendritic analogue. This behavior is consistent with the idea that the dendrimers encapsulate the cluster to some degree, creating a hydrophobic microenvironment around the cluster.}, number={11}, journal={INORGANIC CHEMISTRY}, author={Sharma, Anil K. and Kim, Namjin and Cameron, Christopher S. and Lyndon, Matthew and Gorman, Christopher B.}, year={2010}, month={Jun}, pages={5072–5078} }
 @article{chasse_yohannan_kim_li_li_gorman_2003, title={Dendritic encapsulation-roles of cores and branches}, volume={59}, ISSN={["0040-4020"]}, DOI={10.1016/S0040-4020(03)00435-6}, abstractNote={Examples of new dendrimers are presented. In the first, the effect on electron transfer rate attenuation is investigated for two dendrimer isomers that differ only in the linkage (ortho- versus meta-linked) of the phenyl ether units within one generation of the structure. Second, the effect of encapsulation on electrochemical and luminescence behavior of a new type of rhenium selenide cluster core dendrimer is illustrated.}, number={22}, journal={TETRAHEDRON}, author={Chasse, TL and Yohannan, JC and Kim, N and Li, Q and Li, ZM and Gorman, CB}, year={2003}, month={May}, pages={3853–3861} }
 @article{wassel_fuierer_kim_gorman_2003, title={Stochastic variation in conductance on the nanometer scale: A general phenomenon}, volume={3}, ISSN={["1530-6984"]}, DOI={10.1021/nl034710p}, abstractNote={nism for the variation in the conductance in each of these systems likely differs, each has the common feature that a nanometer-scale collection of molecules conduct the current. Because the current used in STM feedback is based on tunneling, an increase in the dimensions of the tip substrate gap is expected to result in an exponential change in the current. This phenomenon translates into order-of-magnitude changes in the tunneling current for angstrom changes in the gap dimensions. Given that any metal-molecule-metal junction is likely to have enough variability on this length scale, conductance changes in these junctions (and thus stochastic switching) should be completely general in this type of system. In this paper, we show that stochastic switching can be observed in two types of electroactive thiol molecules inserted into an n-alkanethiolate SAM on gold. Previously we have observed negative differential resistance (NDR, decreasing current with increasing bias) in these types of molecules when in a SAM. 11 At the applied bias in which these molecules show NDR, they show an enhanced conductance compared to an n-alkanethiolate SAM background. Here, we show that this enhanced conductance behavior blinks on and off, presumably because of conformation and/ or orientation changes of the inserted molecules with the SAM over time.}, number={11}, journal={NANO LETTERS}, author={Wassel, RA and Fuierer, RR and Kim, NJ and Gorman, CB}, year={2003}, month={Nov}, pages={1617–1620} }