diazonium


Also found in: Dictionary, Thesaurus, Wikipedia.

diazonium

[‚dī·ə′zō·nē·əm]
(organic chemistry)
The grouping =N≡N.
References in periodicals archive ?
In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium.
Each molecule of an aryl diazonium salt contains a six-carbon ring, to which the researchers had attached one of a variety of functional groups.
2] forms a diazonium salt, which reacts with N-(1-naphthyl) ethylenediamine 2HCL to form an azo dye that can be detected by absorbance at a wavelength of 540nm.
4,4,4- trichloro-3-oxo-2-(phenyl-hydrazono)-butyric acid ethyl ester 2 was prepared by diazotization of required primary amine is diazotized with sodium nitrile and HCl mixture at 0-5 and it is coupled with ethyl 4,4,4-trichloro-3-oxobutanoate and afforded phenyl diazonium aceto acetic ester
Prior to composite production, the fibre was modified by o- hydroxy benzene diazonium salts, synthetic and natural enzyme.
Other topics include metal contacts to p- type diamond, structural analysis of detonation nanodiamonds, ternary boron and aluminum carbonitride thin films, aryl diazonium salts for functional diamond platforms, and carbon nanotube growth by DC plasma enhanced CVD.
The diazonium reaction, for instance, provides an effective path to anchor new groups onto the sidewalls and a large variety of functionalities can then be attached.
Anonymized icteric sera (n = 73) with Creatinine concentrations <150 [micro]mol/L were stored at -20 [degrees]C for [greater than or equal to] 2 weeks, and total and conjugated bilirubin were determined by the Roche liquid diazonium ion and Jendrassik-Grof based assays, respectively.
The colorimetric nitrite standard test method and its modifications [1-4] are based on the reaction of nitrite with an aromatic amine (sulphanilamide, sulphapyridine, sulphathiazole) to form a diazonium salt, and on the following reaction with a coupling reagent (1-naphtol-4-sulphonate, N-1-naphtylethylenediamine) to produce a highly coloured potentially carcinogenic azo dye.
For example, improved dispersion in polystyrene-nanotube composites can be realized by the reaction of organic diazonium compounds on the nanotube (27).
Test for functional group: it was done for aromatic sulfonates using diazonium salt (coupling reaction).