Role of complementary H-bonding interaction of a cyanurate in the self-assembly and gelation of melamine linked tri(p-phenyleneethynylene)s.
نویسندگان
چکیده
Melamine-functionalized tri(p-phenyleneethynylene) self-assembles to form opaque and weak gels in aliphatic solvents which turned transparent and stable upon addition of a cyanurate, affording supramolecular nanostructures with distinct physical properties.
منابع مشابه
Cyanurate-guided self-assembly of a melamine-capped oligo(p-phenylenevinylene).
An oligo(p-phenylenevinylene) capped on one end by a monotopic DAD-type triple hydrogen-bonding module shows distinct optical properties as well as self-organization behavior upon complexation with cyanurates with different numbers of ADA-type triple hydrogen-bonding sites.
متن کاملA complementary guest induced morphology transition in a two-component multiple H-bonding self-assembly.
An oligo(p-phenylenevinylene) (OPV) dimer, whose OPV units are capped on their end by monotopic melamine hydrogen-bonding units, self-assembles in methylcyclohexane to form flexible fibrous nanostructures, which are transformed into rigid nanostrips upon adding ditopic cyanurates and reconverted to nanofibers upon adding a m-xylylene-linked bismelamine.
متن کاملMolecular Self - Assembly through Hydrogen Bonding : Aggregation of Five Molecules To Form a Discrete Supramolecular Structure
This article describes reactions of the trivalent melamine derivatives C6H3-1,3,5-[CONHC6H4-3-N(CH2C6H44-C(CHi)3)COC6H3-2-(NHCrN3(NH2XNHCH2CH2C(CH3)3))-5-Brl, (hubM3) and (CH3),COC(O)NHCICH2O(CHz)rSCH2C(O)NHC6H4-2-NHC3N3(NH2)(NH(CH2)2C(CH3)r)1, (trisMr) with the bivalent isocyanurate derivatives CuHzl ,5.[CH(CH)2|z-2,4.[cH,ff i(o)]z(benzCA,)andc4o-2'5-[cH(cH3)2]?-3'4-[cH,ff i6[ NHC(O)12 (furanC...
متن کاملAnion-triggered melamine based self-assembly and hydrogel.
We found that melamine in its protonated form could be triggered by oxoanions such as NO(3)(-), PO(4)(3-), ATP, and SO(4)(2-) to form superstructures and to gelate a large amount of water molecules, presumably resulting from the electrostatic and hydrogen bonding interactions operating in a synergistic manner; the gelation can be reversibly switched off/on by increasing/decreasing pH or tempera...
متن کاملConsideration of C-H…O interaction in the heterocyclic organic-inorganic hybrid material: tri-prolinium12- phosphomolibdate heteropolyoxometalate
Crystallographic data analyses indicate that three types of prolinium cations, along with two types of hydrogen bonding, produce and stabilize the helical structure of triprolinium 12-phosphomolybdate. There are similarities between this organic-inorganic compound and peptides/proteins. The stronger “conventional” hydrogen bonds and the less common C-H…O attractions play critical roles in g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical communications
دوره 40 شماره
صفحات -
تاریخ انتشار 2009