Topic
Norbornadiene
About: Norbornadiene is a research topic. Over the lifetime, 2389 publications have been published within this topic receiving 38603 citations.
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TL;DR: The use of copper(I)-nitrogen ligand catalysts, such as Ph3PCuCl.bipy (1), Ph3PuCnCl.phen (2), Ph 3PCuCL.phtha (3), and Ph 3PuBr.py (4), enables the photochemical isomerization of norbornadiene to quadricyclane in longer wavelength than 350 nm, in which CuCl catalyst itself can not induce such an isomerisation.
Abstract: Use of copper(I)-nitrogen ligand catalysts, such as Ph3PCuCl.bipy (1), Ph3PCuCl.phen (2), Ph3PCuCl.phtha (3), and Ph3PCuBr.py (4), enables the photochemical isomerization of norbornadiene to quadricyclane in longer wavelength than 350 nm, in which CuCl catalyst itself can not induce such an isomerization.
17 citations
TL;DR: In this article, a 1.4-addition of the two fragments formed from homolytic cleavage of the cabon-sulfur bond was proposed to obtain the (4+2)-cycloadducts.
17 citations
TL;DR: In this paper, the products of the reaction of [RhCl (NBD)]2 with four equivalents tertiary phosphine and two equivalents of tin (II) bromide have been studied by 119Sn- and 31P-NMR.
Abstract: The products of the reaction of [RhCl (NBD)]2 (NBD = norbornadiene), with four equivalents tertiary phosphine and two equivalents of tin (II) bromide have been studied by 119Sn- and 31P-NMR. spectroscopy. The solution data suggest that halogen scrambling occurs during the preparation and results in a mixture of complexes containing SnBr3, SnClBr2, and SnCl2Br and SnCl3 ligands, and this is confirmed by independent synthesis of the SnCl3 and SnBr3 complexes. The metalmetal coupling constants, 1J (119Sn, 103Rh), vary from 452 to 580 Hz and are linearly related to: (a) δ(119Sn) in the complexes [Rh (SnClnBr(3-n))NBD (PEtPh2)2] and (b) the sum of the Pauling electronegativities for the halogens on tin.
17 citations
TL;DR: In this article, it was shown that surface olefin complexes and not the metal atoms per se are directly involved in activating molecular hydrogen, which helps to explain why metals with low or negligible capacity for hydrogen chemisorption, e.g. Pt/TiO 2 after high temperature reduction, are still very effective hydrogenation catalysts.
17 citations
TL;DR: In this paper, the dominance of the through-space interaction between the two outermost π-orbitals of norbornadiene has been established from comparison of measured and calculated momentum distributions.
17 citations