1- Hexanethiol

Therefore, monolayers may consist of two different chemisorption modes ordered in different domains, simultaneously coexisting homogeneous clusters, each characterized by a different conformer in their unit cell. This may explain the observation of 2D Hquid in butane- and hexanethiolate monolayers on gold (278), where VDW interactions do not provide enough cohesive energy to allow for small domains to coexist as a 2D soHd. 

C6H5BR BROMOBENZENE 85.584 1.6480E-01 1.3600E-05 138.53 286 C6H14S 1-HEXANETHIOL -123.627 4.7685E-01 1.0281E-04 27.82... 

The cospreading of hexanethiol-capped gold particles with the cross-linking agent 4,4 -thiobisbenzenethiol (TBBT) has been reported as a means of producing cross-linked monolayers of hexanethiol-capped Au nanoparticles [125]. In the presence of TBBT, the... 

Coulomb blockade effects have been observed in a tunnel diode architectme consisting of an aluminum electrode covered by a six-layer LB film of eicosanoic acid, a layer of 3.8-nm CdSe nanoparticles capped with hexanethiol, and a gold electrode [166]. The LB film serves as a tunneling barrier between aluminum and the conduction band of the CdSe particles. The conductance versus applied voltage showed an onset of current flow near 0.7 V. The curve shows some small peaks as the current first rises that were attributed to surface states. The data could be fit using a tunneling model integrated between the bottom of the conduction band of the particles and the Fermi level of the aluminum electrode. 

Several mixtures of hexanethiol capped gold nanopartides and triphenylene based discotic LCs have been studied. These mixtures display liquid crystal behavior (columnar mesophases) and an enhancement in the DC conductivity, due to the inclusion of gold nanoparticies into the matrix of the organic LC [70]. Other studies of mixtures of gold nanoparticies with mesogens indude a series of cholesteryl phenoxy alkanoates. The inclusion of the nanopartides does not change the inherent liquid crystal properties of the cholesteryl derivative but the mesophases are thermally stabilized [71]. 

Figure 4. Preparative procedure of alkene thiol-stabilized gold nanoparticles. 50% of hexenethiol bounded to the particle surface is hydrogenated to hexanethiol [11b].

General procedure for C-S bond formation. A 50 mL of reactor was charged with 232.5 mg (0.25 mm) of POPdl, 1.36 g (12.0 mmol) of 3-chloropyridine, 1.18 g (10.0 mmol) of 1-hexanethiol and 1.92 g (20.0 mmol) of NaO-tBu in 15.0 mL of toluene. The resulting mixture was refluxed for 16 h before the mixture was cooled to room temperature and quenched with 100 mL of H20. The mixture was transferred to a separatory funnel, and extracted with EtOAc (2 X 200 mL). The layers were separated, and organic layer was washed with H20 (100 mL), brine (150 mL), and dried over MgS04, filtered, and the solvents removed from the filtrate by rotary evaporation. The final product was chromatographed on silica gel using ethyl acetate/hexane (5% volume ratio) as eluant. The eluate was concentrated by rotary evaporation to yield 1.90 g (97% yield) of 3-hexylthiopyridine. 

Related sulfur-containing derivatives are formed from the reaction of 49 with 2-methyl-2-propanethiol, cyclo-hexanethiol, and 2-propanethiol in toluene at ambient temperature. The resulting tetrameric cyclopentadienyl thiolato complexes [(if-Cp)Mg(/.t3-SR) ]4 (R = Bu, CgFIn, Pr1) are colorless crystalline solids. Treatment of... 

DMDS, DMTS, MT, methional, hexanethiol and thiophene 2-aldehyde. H2S and COS also make a contribution.33... 

Murray et al. demonstrated in two seminal contributions that freely diffusing, monodisperse hexanethiol-capped 1.6-nm Au-NPs ( Au145) exhibit sequential... 

We have recently synthesized monodisperse hexanethiolate-protected gold clusters, AU144-C6S, and determined an average core diameter of 1.7 0.3 nm, in support of the estimated molecular formula Au144-(C6H11S)52 (Fig. 30b) [334],... 

Synthesis of Au75from Au55 Phosphine-protected Au nanoclusters, Au55(PPh3) 2Cl6, were reacted with hexanethiol and other thiols leading to the formation of Au75... 

---