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* Azo compounds ( R-N = N-R ') can be the precursor of two carbon-centered radicals ( R • and R '•) and nitrogen gas upon heating and / or by irradiation.
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Azo and compounds
* Azo compound, chemistry functional group and class of compounds, also used for CDs and DVDs
Azo compounds are compounds bearing the functional group R-N = N-R ', in which R and R ' can be either aryl or alkyl.
Category: Azo compounds
Category: Azo compounds
Azo and =
*: Category: Azo dyes, based on-N = N-azo structure
Azo dyes: The structure of azo dyes is based on azobenzene, Ph-N = N − Ph ( see image on right showing cis / trans isomers ) Although azo dyes are a separate class of dyestuff mainly used In the dyeing of cotton ( cellulose ) fibers, many acid dyes have a similar structure, and most are red in color.
Azo and be
The medieval Georgian source Moktsevai Kartlisai (“ Conversion of Kartli ”) also speaks about Azo and his people, who came from Arian-Kartli – the initial home of the proto-Iberians, which had been under Achaemenid rule until the fall of the Persian Empire – to settle on the site where Mtskheta was to be founded.
Another Georgian chronicle Kartlis Tskhovreba (“ History of Kartli ”) claims Azo to be an officer of Alexander ’ s, who massacred a local ruling family and conquered the area, until being defeated at the end of the 4th century BC by Prince Pharnavaz, who was at that time a local chief.
According to the Conversion, Mtskheta remained the chief city of " Kartli ", the medieval native name for Georgia, up until Alexander's arrival, who changed the ruling dynasty in Mtskheta by installing Azo, said to be a prince from Arian Kartli.
According to the Chronicles, after Mtskhetos ' death, Kartli broke up into several smaller, warring regions, until unity was restored by Azo, said to be one of Alexander's Macedonian generals, who was in turn expelled by the ( half-Persian ) local prince Parnawaz, and it was Parnawaz who founded the new ruling dynasty of Kartli.
Azo's works enjoyed great authority among generations of continental lawyers, such that it used to be said, Chi non ha Azzo, non vada al palazzo, roughly translated: " Who hasn't Azo on his side, will not go to court ", neither as a plaintiff nor as judge.
Azo and /
Verbatim also resells relabeled products from Japanese, Taiwanese, Mainland Chinese, Malaysian and Indian factories ( Pearl White DVD series in Europe, some CD-R not labeled Super Azo ), including but not limited to products by Taiyo Yuden, Ritek Corporation, CMC Magnetics, Prodisc, Moser Baer, Daxon / BenQ.
The identification of Azo / Azon is one of the most complex and contentious enigmas of early Georgian history.
Azo and by
# Azo dye CD-Rs are dark blue in color, and their formulation is patented by Mitsubishi Chemical Corporation.
Azo (; or Azoy, აზოჲ ) also known as Azon ( აზონი ) was a legendary ruler of Georgians of ancient Kartli ( Iberia of the Classical authors ) claimed by medieval Georgian annals to have been installed by Alexander the Great, king of Macedon ( r. 336 – 323 BC ).
According to The Conversion of Kartli, Azo was the son of an unnamed king of Arian-Kartli, who was brought, together with followers, to Kartli proper by Alexander and installed as the first king ( mep ' e, მეფე ) at Mtskheta after the conquest of this city.
Azo and .
Azo dye is also chemically stable, and Azo CD-Rs are typically rated with a lifetime of decades.
Azo is the most resistant dye against UV rays and begins to degrade only after the third or fourth week of direct sunlight exposure.
More modern implementations of this kind of dye include Super Azo which is not as deep blue as the earlier Metal Azo.
" For his definition of justice, Bracton quoted the twelfth-century Italian jurist Azo: "' Justice is the constant and unfailing will to give to each his right.
He was a pupil of Azo, and the master of Odofredus, of the canonist Hostiensis ( Henricus de Segusio ), and of Jacobus de Ravanis ( Jacques de Revigny ), who taught at Orléans.
Born at Kermartin, a manor near Tréguier in Brittany, Ivo was the son of Helori, lord of Kermartin, and Azo du Kenquis.
Azo pigments are colorless particles ( typically earths or clays ), which have been colored using an azo compound.
Azo pigments are important in a variety of paints including artist's paints.
Azo dyes derived from benzidine are carcinogens ; exposure to them has classically been associated with bladder cancer.
Azo bent-core mesogen thermal transitions in ° C: K 82. 8 Sy 93. 4 Sx 104. 3 Sc 118. 5 Nb 149 Nu 176. 5 I
A pupil of Azo, he first practised law in his native city, and was afterwards appointed professor at Bologna, where he had great success as a teacher.
compounds and R-N
Diazo compounds should not be confused with azo compounds of the type R-N = N-R or with diazonium compounds of the type R-N < sub > 2 </ sub >< sup >+</ sup >.
Diazonium compounds or diazonium salts are a group of organic compounds sharing a common functional group R-N < sub > 2 </ sub >< sup >+</ sup > X < sup >-</ sup > where R can be any organic residue such alkyl or aryl and X is an inorganic or organic anion such as a halogen.
compounds and =
The most widely used member of this class of compounds is methyl vinyl ketone, CH < sub > 3 </ sub > C ( O ) CH = CH < sub > 2 </ sub >, which is useful in Robinson annulation reaction.
It can be produced by thermal decomposition of only certain compounds, especially those with an-N = N-linkage.
For homonuclear A – A bonds, Linus Pauling took the covalent radius to be half the single-bond length in the element, e. g. R ( H – H, in H < sub > 2 </ sub >) = 74. 14 pm so r < sub > cov </ sub >( H ) = 37. 07 pm: in practice, it is usual to obtain an average value from a variety of covalent compounds, although the difference is usually small.
In 1930 he proposed a σ / π separation theory to explain the restricted rotation of alkenes ( compounds containing a C = C double bond ).
Animal studies and in vitro research has identified possible anti-inflammatory and hepatoprotective activities which may be due to the antioxidant effects of flavonoids or other phenolic compounds and saponins the plant contains .< ref name = halr > Xiong et al.
Other dioxin congeners including PCDFs and PCBs with dioxin-like toxicity, are given a toxicity rating from 0 to 1, where TCDD = 1 ( see Dioxins and dioxin-like compounds ).
Unsaturated compounds have double bonds ( C = C ) between carbon atoms, reducing the number of places where hydrogen atoms can bond to carbon atoms.
Similarly organic compounds with single C-C-bonds elute later than those with a C = C or C-C-triple bond, as the double or triple bond is shorter than a single C-C-bond.
It also provides various cancer-fighting compounds including isothiocyanate and sulphoraphane .< ref name = denn >
It is insoluble in normal organic solvents because of the huge molecular weight ( upwards of 1, 000 daltons or 1000 Da ; 1Da = 1 atomic mass unit ) of its component compounds.
Other common double bonds are found in azo compounds ( N = N ), imines ( C = N ) and sulfoxides ( S = O ).
Hydrazones are a class of organic compounds with the structure R < sub > 1 </ sub > R < sub > 2 </ sub > C = NNH < sub > 2 </ sub >.
A quinone is a class of organic compounds that are formally " derived from aromatic compounds as benzene or naphthalene by conversion of an even number of – CH = groups into – C (= O )– groups with any necessary rearrangement of double bonds ," resulting in " a fully conjugated cyclic dione structure.
" The term allyl applies to many compounds related to H < sub > 2 </ sub > C = CH-CH < sub > 2 </ sub >, which includes thousands of different chemical compounds, some of which are of practical or everyday importance.
For un-ionizable compounds, log P =
Organic compounds called carbodiimides have the formula RN = C = NR, they are unrelated to imides.
Thiophosphoryl compounds, those bearing the P = S functionality, are much less toxic than related phosphoryl derivatives, which include sarin, VX and tetraethyl pyrophosphate.
Nitrosamines are chemical compounds of the chemical structure R < sup > 1 </ sup > N (- R < sup > 2 </ sup >)- N = O, most of which are carcinogenic.
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