Hydrogenation Of Alkenes | Wilkinson’s Catalyst

What is hydrogenation of alkenes? Key points: Wilkinson’s catalyst, [RhCl(PPh3)3], and related complexes are used for the hydrogenation of a wide variety of alkenes at pressures of hydrogen close to 1 atm or less; suitable chiral ligands can lead to enantioselective hydrogenations. The addition of hydrogen to an alkene to form an alkane is favoured thermodynamically …

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organotin compounds

Organotin Compounds – An Overview and Synthesis

Key points: Tin and lead form tetravalent organo compounds; organotin compounds are used as fungicides and pesticides. Many organometallic compounds of Group 14 are of great commercial importance, although the use of lead is illegal in many parts of the world, owing to its toxicity. Generally, organometallic compounds of the group are tetravalent and have …

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Allotropes of phosphorus

Allotropes Of Phosphorus: Structure and Properties

Phosphorus has many allotropes, which includes white phosphorus, red phosphorus and black phosphorus. Structure Of Phosphorus Phosphorus exists as tetrahedral P4 molecules in the liquid and gas phases. At very high temperatures, P4 dissociates into P2. At approximately 1800 °C, this dissociation reaches 50 per cent. Different Allotropes of Phosphorus White Phosphorus – The Most …

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