421 research outputs found
Paperback History (review article) 'New books focusing on the working class'
No full textA review of: The Ideologies of Class: Social Relations in Britain 1880-1950 by Ross McKibbin (Oxford University Press 1994, first published 1990)
Poor Citizens: The State and the Poor in Twentieth Century Britain by David Vincent (Longman, 1991)
Film and the Working Class: The Feature Film in British and American Society by Peter Stead (Routledge, 1991)
Working Class Americanism: The Politics of Labor in a Textile City 1914-1960 by Gary Gerstle (Cambridge University Press, 1989).
- See more at: http://www.historytoday.com/mark-clapson/paperback-history#sthash.rlw2UoKc.dpu
Cooperative nitrile coordination using nickel and a boron‐containing secondary coordination sphere**
No full textMetal-ligand cooperation has emerged as a versatile tool for substrate activation in chemical reactivity. Herein, we provide the synthesis and characterization of a monoboranyl-containing analogue of the ubiquitous bulky diphosphine ligand, 1,2-bis(di-tert-butylphosphino)ethane, whose reactivity has been examined using nickel. Together, the pairing of nickel and boron provides a platform that allows for the cooperative coordination of organonitriles, giving unusual examples of intermolecularly bound dinickelacycles
Anomalous hydroboration at a four-coordinate Ni(II) diphenylvinylphosphine complex: Geometric impacts on solution equilibria
No full textFor coordination compounds, reliable control of metal geometry and spin state is of great interest, permitting control of reactivity and selectivity. As tuneable outputs, these observables are adjusted through thoughtful choice of ligand. This report examines a family of monophosphine-ligated nickel(II) dihalide compounds containing secondary coordination sphere borane groups. Interestingly, anomalous hydroboration of trans-[NiII(X)2(PPh2Vin)2] (Vin = vinyl) was witnessed upon treatment with HBCy2 (Cy = cyclohexyl), resulting in halide-directed Markovnikov hydroboration; these branched products were observed to be diamagnetic in solution. This outcome is in contrast with the linear ligand variants, which were prepared independently and show solution paramagnetism. Together, this report details an unusual hydroboration outcome and how this anomalous reactivity gives way to unique solution behavior of the resulting nickel(II) products simply by virtue of linear or branched secondary coordination sphere incorporation
Facile deoxygenative reduction of a bridging carbonato ligand with Silyl and Boryl 4,4’‐Bipyridinylidene reagents
No full textThe reactivity of CO2 with a previously described PCcarbeneP cobalt(I) hydroxide is reported. Insertion of CO2 into the Co−OH bond followed by a dehydration reaction releasing water results in a cobalt(I) bridging carbonate species featuring fluctional κ1: κ1 and κ1: κ2 coordination of the central carbonate moiety. The reduction chemistry of the resulting cobalt(I) bridging carbonate species is explored utilizing deoxygenative reducing agents N,N′-bis(trimethylsilyl)- and N,N′-bis(pinacolatoboryl)-4,4′-bipyridinylidene. The three-electron reduction produces the corresponding PCcarbeneP cobalt(I) siloxide or boroxide complex alongside a PCcarbeneP cobalt(0) monocarbonyl, silyl/boryl ether, and 4,4’-bipyridine
Nickel upgrades nitrogen waste
No full textConversion of greenhouse gases and other pollutants to fine chemicals is a global challenge. First-row-transition-metal catalysts show promise as cost-effective tools to combat environmental impacts by managing the carbon and nitrogen cycle. Nitrogen oxyanions are experiencing renewed interest for their use as N1 feedstocks
Technology, social change, and the planning of a post-industrial city: a case study of Milton Keynes
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