Hydrophilic surfaces via the self-assembly of nitrile-terminated alkanethiols on gold was written by Park, Chul Soon;Zenasni, Oussama;Marquez, Maria D.;Moore, H. Justin;Lee, T. Randall. And the article was included in AIMS Materials Science in 2018.Recommanded Product: 56523-59-2 This article mentions the following:
A series of CN-terminated alkanethiols were synthesized and used to generate self-assembled monolayers (SAMs) on gold. The SAMs were characterized using ellipsometry, contact angle goniometry, polarization modulation IR reflection absorption spectroscopy (PM-IRRAS), and XPS. The SAMs were compared to those derived from a series of analogous CH3-terminated alkanethiols. The CN-terminated SAMs exhibited lower film thicknesses than the CH3-terminated SAMs, which was largely due to their greater tilt angle on the surface. Addnl., the CN-terminated SAMs form well-ordered films on flat gold surfaces with relative packing densities being indistinguishable from the CH3-terminated SAMs. The CN-terminated SAMs exhibited a less hydrophobic character than the SAMs derived from CH3-terminated adsorbates, which was attributed to the dipole moment of the terminal group as well as the lone pair of the nitrogen atom of the CN-terminal group. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Recommanded Product: 56523-59-2).
15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Recommanded Product: 56523-59-2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary