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Topic: Tetrazine

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	Tetrazine - Memory Alpha (Site not responding. Last check: 2007-10-29)
		Tetrazine is a highly volatile gaseous substance that is a by-product of the mining operations of the colony on Paraagan II.
		A tetrazine reaction with electro-plasma was responsible for the colony's destruction in 2152.
		Plasma exhaust is one of the few things hot enough to ignite tetrazine, and thus approaching spacecraft are required to close their exhaust ports.
	memory-alpha.org /en/wiki/Tetrazine (139 words)

	The versatile reactivity of dienamines with tetrazines
		In the case of the nonmethylated dienamine the tetrazines attack preferentially at the enamine moiety and lead to dihydropiridazine intermediates (15) which readily aromatise to the azolylvinylpiridazines (12) by amine elimination.
		Besides a substantial amount of the tricyclo compounds 19a-d the dihydropyridazines 20a-d and the pyridazine compound 21 were also present in most cases, the amount of which seemed to be proportional to the basicity of the starting enamine[8].
		Dienamines were shown to undergo selective transformations with tetrazine derivatives and a series of products were isolated, The selective reactions were rationalised by the steric non-equivalence of the two double bonds in dienamines and the different tautomeric equilibria of the formed dihydropyridazine intermediates.
	www.ch.ic.ac.uk /ectoc/echet98/pub/049 (813 words)

	Reduced smoke gas generant with improved temperature stability - Patent 6588797 (Site not responding. Last check: 2007-10-29)
		The oxidizer is an inorganic salt and the fuel is a tetrazine.
		R.sub.1 and R.sub.2 are non-metallic substituents bonded to the carbon atoms at the 3 and 6 positions, respectively, of the tetrazine ring, and selected from the group consisting of: hydro; amino and derivatives thereof; tetrazolyl and derivatives thereof; triazolyl and derivatives thereof; azido and derivatives thereof; carboxyl and derivatives thereof; and mixtures thereof.
		R.sub.1 and R.sub.2, in the respective tetrazines, are non-metallic substituents bonded to the carbon atoms at the 3 and 6 positions of the tetrazine ring.
	www.freepatentsonline.com /6588797.html (3000 words)

	new page1 (Site not responding. Last check: 2007-10-29)
		Besides, in many respects the pathway of cycloaddition reactions of tetrazines is dependent on the conditions [8,9] (for example, on solvent).
		Therefore, they should be responsible for the interaction between the nitrogen atoms of the tetrazine ring and the hydrogen atoms of the methyl groups of the enamine.
		-atom of the tetrazine and its nearest atom of the enamine is 4.27 Å).
	www.arkat-usa.org /ark/journal/2004/I11_Chupakhin/OC-1188H/OC-1188H.asp (2231 words)

	The Naked Scientists Science Discussion Forum - Nitrogen Allotropes (Site not responding. Last check: 2007-10-29)
		Hexazine might be formed if we could start with a compound called tetrazine.
		Tetrazine is like the benzene molecule, but 4 of the CH groups are replaced with nitogen atoms.
		If you could isolate a bunch of pure carbon 14 and make a whole lot of purely isotopic tetrazine, you MIGHT get a detectable amount of product in a year or 10.
	www.thenakedscientists.com /forum/topic.asp?TOPIC_ID=572 (390 words)

	Electronic structure of tetrahydro-v-tetrazines
		We have measured the He(I) photoelectron spectra of the tetrazines 1 [2],[3] and 2.
		Interpretation of PE spectra usually requires correlation of measured ionization potentials and calculated orbital energies using Koopmans' approximation [4].
		Tetrazines 1 and 2 are small molecules with multiple vicinal electron lone pairs.
	www.ch.ic.ac.uk /ectoc/echet96/papers/013 (632 words)

	STARTREK.COM : Episode (Site not responding. Last check: 2007-10-29)
		Eager to visit the deep-space colony of a race called the Paraagans, Captain Archer leads an away team toward the surface of an alien planet.
		While piloting the shuttlepod into the atmosphere, Reed proceeds cautiously as he follows the Paraagan landing protocols precisely, a necessity due to the high concentration of the volatile gas tetrazine at a certain altitude.
		He closes the shuttlepod's plasma vents as instructed (exhaust plasma being the only thing hot enough to ignite the tetrazine), but just then the shuttlepod is rocked by a deafening explosion, and a massive shockwave scorches the planet beneath them.
	www.startrek.com /startrek/view/series/ENT/episode/124540.html (1157 words)

	Propellant containing 3;6-BIS(1H-1,2,3,4-Tetrazol-5-ylamino)-1,2,4,5-tetrazine or salts thereof - Patent 6458227
		The propellant composition of claim 5 wherein said oxidizer is ammonium perchlorate.
		The present invention relates to a tetrazine based energetic material and more particularly to 3,6-bis(1H-1,2,3,4-tetrazol-5-ylamino)-1,2,4,5-tetrazine and its salts, e.g., the di-ammonium, di-hydroxylammonium, or di-hydrazinium salt.
		The present invention is concerned with tetrazine based energetic materials.
	www.freepatentsonline.com /6458227.html (2469 words)

	Protonation Effects on Superexchange across Gold/Osmium Bis(bipyridyl) Tetrazine Chloride Monolayer Interfaces
		of the tetrazine within the monolayer has been determined as 2.7 ± 0.3 from the pH dependence of the interfacial capacitance.
		Significantly, this value is indistinguishable from that found for the complex dissolved in essentially aqueous solution suggesting that these monolayers are highly solvated.
		These observations are interpreted in terms of a through-bond hole tunneling mechanism in which protonation decreases the electron density on the bridge and reduces the strength of the electronic coupling between the metal center and the electrode.
	pubs.acs.org /cgi-bin/jtext?jpcbfk/105/i14/abs/jp003984n (273 words)

	Phthalocyanines
		Some years ago, we developed a method for the transformation of phthalocyaninato- and naphthalocyaninato-transition metal compounds into coordination polymers as shown in figure2.
		The bridging is effected by neutral ligands with sigma-donor ability such as pyrazine (pyz), tetrazine (tz), diisocyanobenzene (dib) etc. In this macrocycle system, central transition metal atom and the bridging ligand can be systematically varied to influence the physical properties such as conductivity, nonlinear optical properties and others.
		tetrazine, shish-kebab polymers of the structural type depicted in figure 2 display intrinsic semiconducting properties, while on the other hand chemical and electrochemical doping are still possible without destroying the polymer structure.
	www.uni-tuebingen.de /uni/cob/AKHanack/engtext/_blau.htm (670 words)

	Functionalised Rigid Rods &endash; Dream or Reality
		The proposed synthesis of molrac 20 using tetrazine is outlined in Scheme 4.
		Combination of two equivalents of 12 with one equivalent of s-tetrazine 18 in DCM revealed the loss of the characteristic red colour of 18 within several minutes, an phenomena usually expected to be associated with the rapid formation of the intermediate dihydropyrazine 19 in this case.
		The pink color of the tetrazine disappeared within several minutes.
	pages.unibas.ch /mdpi/ecsoc-3/a0016/a0016.htm (1787 words)

	Borocarbon - Memory Alpha
		Borocarbon is a chemical compound of the elements boron and carbon.
		This substance that is a by-product of reactions between tetrazine gas and plasma exhaust.
		Borocarbon is a real compound, boron carbide, obtained by treating graphite and boric acid in an electric furnace.
	memory-alpha.org /en/wiki/Boro-carbons (114 words)

	STARTREK.COM : Article
		Home :: Library :: Science & Medical :: tetrazine
		Tetrazine was found in the atmospher of the Paraagan mining colony planet.
		Enterprise's shuttle plasma exhaust appeared to ignite the tetrazine in the atmosphere, destroying the colony and colonists.
	www.startrek.com /startrek/view/library/science/article/127778.html (58 words)

	Browse a molecule data (Site not responding. Last check: 2007-10-29)
		BASIS 4-31G Tetrazine 4-31G ---------------- 3 3 X Y Z 6.
		Do not rotate molecule if you suspect your browser's Java implementation is broken - this can hang the browser.
		The browser does not support yet symmetries specified in the input file.
	www.theochem.kth.se /molDB/listmol.php?id=7 (82 words)

	PADD =/\= "SHOCKWAVE"
		As an Enterprise shuttle approaches a mining colony inhabited by 3,600 Paraagans, an explosion ignites the tetrazine in the planet's atmosphere, killing all the colonists.
		When Starfleet Command learns of the accident, the Enterprise is recalled to Earth and its mission is cancelled.
		Factoid: Paraagans have a matriarchal society, but in the past decade the males have made great strides to acquire equal rights.
	www.trekguide.com /padd/ent026.htm (256 words)

	Synthesis and alkylation of some [1,2,4]triazolo[4,3-b]tetrazines
		As part of our ongoing research on the "inverse electron-demand" Diels-Alder reaction of electron rich dienes and tetrazines
		we were interested in the synthesis of new electron deficient tetrazine derivatives.
		As the second nitrogen of the pyrazole substituent might in principle interfere in the alkylation process of 3 we also prepared its morpholino analogue (6) where conjugation of the morpholine nitrogen with the tetrazine moiety
	www.organic-chemistry.org /abstracts/literature/485.shtm (1027 words)

	Personal Opinion (Menu Suggestions) (Site not responding. Last check: 2007-10-29)
		Chicken or vegetable primavera served with salad and rolls.
		Chicken Tetrazine served with salad and hot bread.
		Eggplant Parmesan served with pasta, salad, and rolls.
	www.personalopinion.org /menu.htm (201 words)

	Chill2Music - Berlin Irving - Ki-I-Youdleing Dog, The (4 Apr 1913) - Lyrics (Site not responding. Last check: 2007-10-29)
		They don't compare with my pet's little voice
		Queen Tetrazine sings as high as could be
		I've heard that she hits a "C" easily
	www.chill2music.com /lyrics/114574/berlin-irving-kiiyoudleing-dog-the-4-apr-1913 (90 words)

	476838 3 6 Bis 2 chlorophenyl 1 2 4 5 tetrazine
		476838 3 6 Bis 2 chlorophenyl 1 2 4 5 tetrazine
		Use of this web site constitutes your acceptance of the Site Use Terms
		Sigma-Aldrich brand products are sold exclusively through Sigma-Aldrich, Inc. Best viewed in IE6 or higher
	www.sigmaaldrich.com /catalog/search/ProductDetail/ALDRICH/476838?CHEMBUYERSGUIDE (47 words)

	NTP Acute Toxicity Studies for Clofentezine
		Acute toxicity summary rating for this chemical using NTP data: No NTP Studies
		CAS Number: 74115-24-5 Use Type: Insecticide Chem Class: Tetrazine
		Note: The NTP Summary rankings were calculated using only oral, dermal and inhalation studies for all mammals that are reasonable analogs for humans.
	www.pesticideinfo.org /List_NTPStudies.jsp?Rec_Id=PC106 (101 words)

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