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Diphenylacetylene is the chemical compound C 6 H 5 C≡CC 6 H 5. The molecule consists of two phenyl groups attached to a C 2 unit. A colorless solid, it is used as a building block in organic synthesis and as a ligand in organometallic chemistry .
Phenylacetylene is a prototypical terminal acetylene, undergoing many reactions expected of that functional group. It undergoes semihydrogenation over Lindlar catalyst to give styrene.
Dầu Tiếng is a rural district of Bình Dương province in the Southeast region of Vietnam. As of 2003, the district had a population of 92,592. [1] The district covers an area of 720 km 2. The district capital lies at Dầu Tiếng township. [1] The district had a base with the same name during the war in Vietnam.
A model attribution edit summary is Content in this edit is translated from the existing Vietnamese Wikipedia article at [[:vi:Dầu Tiếng (thị trấn)]]; see its history for attribution. You may also add the template {{Translated|vi|Dầu Tiếng (thị trấn)}} to the talk page. For more guidance, see Wikipedia:Translation
Together with 1,2,3,4-tetraphenylnaphthalene, hexaphenylbenzene forms by the chromium-catalyzed oligomerization of diphenylacetylene. [3] It may also be prepared by the dicobalt octacarbonyl -catalyzed alkyne trimerisation of diphenylacetylene.
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
Từ điển bách khoa Việt Nam (lit: Encyclopaedic Dictionary of Vietnam) is a state-sponsored Vietnamese-language encyclopedia that was first published in 1995. It has four volumes consisting of 40,000 entries, the final of which was published in 2005. [1] The encyclopedia was republished in 2011.
Tiến lên (Vietnamese: tiến lên, tiến: advance; lên: to go up, up; literally: "go forward"; also Romanized Tien Len) is a shedding-type card game originating in Vietnam. [1] It may be considered Vietnam's national card game, and is common in communities where Vietnamese migration has occoured.