69839-68-5 Usage
Uses
Used in Bio-engineering:
16-Mercaptohexadecanoic acid is used as a component in bio-engineering for its ability to form a SAM on gold surfaces through pen lithography (PPL). This property allows for the creation of functionalized surfaces with potential applications in the development of biosensors and other bio-engineering technologies.
Used in Nano-resonator Fabrication:
16-Mercaptohexadecanoic acid is used as a functionalizing agent for gold-dypiramids, which can be utilized to fabricate nano-resonators. These nano-resonators are essential components in shell-isolated nanoparticle-enhanced Raman-spectroscopy (SHINERS), a powerful analytical technique for detecting and identifying molecules at the nanoscale.
Used in Self-assembly:
16-Mercaptohexadecanoic acid is used in self-assembly to produce hydrophilic SAMs. The resulting monolayers, which are terminated with carboxylic acids, can be further functionalized with various amines and alcohols to introduce more complex end groups or multiple layers. This process enhances the versatility and functionality of the SAMs for various applications.
Used in the Formation of Interchain Carboxylic Anhydrides:
16-Mercaptohexadecanoic acid is used in the formation of interchain carboxylic anhydrides on self-assembled monolayers with Fluoro N,N,N′,N′-tetramethylforamidinium hexafluorophosphate. 16-MERCAPTOHEXADECANOIC ACID plays a crucial role in the development of advanced materials with tailored properties for various applications in different industries.
Check Digit Verification of cas no
The CAS Registry Mumber 69839-68-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,3 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69839-68:
(7*6)+(6*9)+(5*8)+(4*3)+(3*9)+(2*6)+(1*8)=195
195 % 10 = 5
So 69839-68-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H32O2S/c17-16(18)14-12-10-8-6-4-2-1-3-5-7-9-11-13-15-19/h19H,1-15H2,(H,17,18)
69839-68-5Relevant academic research and scientific papers
Multiple Electron Tunneling Paths across Self-Assembled Monolayers of Alkanethiols with Attached Ruthenium(II/III) Redox Centers
Finklea, Harry O.,Liu, Luna,Ravenscroft Melissa S.,Punturi, Sesto
, p. 18852 - 18858 (2007/10/03)
Alkanethiol monolayers with pendant redox centers are deposited on gold electrodes by selfassembly.The monolayers are composed of both an electroactive thiol, HS(CH2)nC(O)NHCH2pyRu(NH3)5(2+/3+), with 10-15 methylene groups, and a diluent thiol, HS(CH2)mCOOH, also with 10-15 methylene groups.The monolayers are classified as "matched" (n = m), "exposed" ( n = 15, m = 10-14), and "buried" (n = 10, m = 11-15) according to the relative position of the redox center.Cyclic voltammograms in aqueous Na2SO4 indicate that the monolayers are close-packed with the redox centers residing in the aqueous phase in all but the most buried cases.Measurements of electron transfer kinetics by several methods (cyclic voltammetry, ac impedance spectroscopy, chronoamperometry) yield an internally consistent set of kinetic parameters, the standard rate constant ko, and the reorganization energy λ of the redox centers.The reorganization energies are in good agreement with the theoretically predicted value of 1.0 eV for the pyRu(NH3)5 redox centers.Plots of ln(ko) vs m are linear in all three cases.The slopes of the linear regression fit provide tunneling parameters (β, where ko ca. e-βm) of 0.97 +/- 0.03 (matched cases), 0,83 +/- 0.03 (exposed cases) and 0.16 +/- 0.02 (buried cases) per methylene.This pattern of β's is interpreted in terms of electronic coupling between the redox center and the electrode via both the redox thiol and the proximate diluent thiols, with the coupling via the diluent thiols dominating in the exposed cases.
