Tris[1,3‐Bis(Diphenylphosphino)Propane]‐Heptahydridotriiridium(2 +) Bis(Tetrafluoroborate) and Bis[1, 3‐Bis‐(Diphenylphosphino)Propane]‐Pentahydridodiiridium(1+) Tetrafluoroborate

Wang, H. H.; Mueting, Ann M.; Casalnuovo, J. A.; Yan, Shi‐Ping; Barthelmes, J. K.‐H.; Pignolet, L. H.; McGrath, Martin P.; Crabtree, Robert H.

doi:10.1002/9780470132586.ch5

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Two examples found in the database, not given as problem set questions, involve situations of uncertainty where in one case the stoichiometry of the reaction has not been verified by experiment (Part 3, p. 138, Ex. 46), and in the other, byproducts are not identified although nonunity stoichiometric coefficients are still specified for the reactants (Part 3, p. 171, Ex. 162).…”

Section: Topics For Problem Set Exercisesmentioning

confidence: 99%

Using Balancing Chemical Equations as a Key Starting Point To Create Green Chemistry Exercises Based on Inorganic Syntheses Examples

Andraos¹

2016

J. Chem. Educ.

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Following our previous work on introducing a database of tested chemical examples from Organic Syntheses that can be used as a repository for problem set development in green chemistry courses, in this paper we extend this idea to include over 1300 examples taken from Inorganic Syntheses covering 36 volumes. Examples are sorted according to the following 13 categories: asymmetric syntheses, syntheses involving catalyst preparation, chemoenzymatic reactions, classical resolutions, convergent synthesis plans, kinetic resolutions; multicomponent reactions, multistep linear synthesis plans, natural feedstocks as starting materials, reactions involving product distributions, reactions involving sacrificial reagents, reactions involving nonunity stoichiometric coefficients, and polymerization reactions. In this paper, we highlight the skill of balancing chemical equations as a mandatory prerequisite of green metrics analysis. Through a problem set containing 70 exercises, we selected challenging examples from Inorganic Syntheses to emphasize this point and link it to the understanding of reaction mechanisms. A number of these examples also contain errors or missing information that students are asked to correct. This is yet another good training ground to exercise their skills in problem solving.

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Section: Topics For Problem Set Exercisesmentioning

confidence: 99%

Using Balancing Chemical Equations as a Key Starting Point To Create Green Chemistry Exercises Based on Inorganic Syntheses Examples

Andraos¹

2016

J. Chem. Educ.

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Mixed‐Metal‐Gold Phosphine Cluster Compounds

Mueting¹,

Alexander²,

Boyle³

et al. 1992

Inorganic Syntheses

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Synthesis and Catalytic Applications of Chiral Hydridoiridium(III) Complexes with Diamine/Bis(monophosphane) and Diamine/Diphosphane Coordination

2007

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The P2/N2‐coordinated cis‐dihydridoiridium(III) chelate complexes (OC‐6‐13)‐[IrH2(H2N∩NH2)(PR3)2]BF4 [PR3 = PPh3, H2N∩NH2 = 1,2‐(H2N)2C6H4 (1a); (1R,2R)‐(H2N)2C6H10 {(R,R)‐dach} (1b); (R)‐2,2′‐diamino‐1,1′‐binaphthyl {(R)‐dabin} (1c); PR3 = PiPr3, H2N∩NH2 = (R,R)‐dach (2a), (R)‐dabin (2b); PR3 = PCy3, H2N∩NH2 = (R)‐dabin (3)] were obtained by treating the respective diamine ligands with labile precursors such as [IrH2(OCMe2)2(PPh3)2]BF4, [(η4‐1,5‐C8H12)Ir(PPh3)2]BF4, or [IrH5(PR3)2]/HBF4 (R = iPr, Cy). While oxidative addition of HCl to [(η4‐1,5‐C8H12)Ir{(S,S)‐bdpcp}]BF4 [(S,S)‐bdpcp = (1S,2S)‐(Ph2P)2C5H8] yields the usual mononuclear adduct [(η4‐1,5‐C8H12)Ir(H)(Cl){(S,S)‐bdpcp}]BF4 (4), similar treatment of [(η4‐1,5‐C8H12)Ir{(R)‐binap}]BF4 furnishes the triply chlorido‐bridged diiridium complex [{(R)‐binap}2Ir2H2(μ‐Cl)3]BF4 (5). Opening of the μ‐Cl bridges of 5 by N,N nucleophiles was used to synthesise the three diamine/(R)‐binap complexes [Ir(H)(Cl)(H2N∩NH2){(R)‐binap}]BF4 [H2N∩NH2 = (1R,2R)‐H2NCH(Ph)CH(Ph)NH2 {(R,R)‐dpen} (6a), (R,R)‐dach (6b), and H2NCMe2CMe2NH2 {tmen} (6c). Whereas the dihydrides [IrH2{(R,R)‐dach}(PR3)2]BF4 and [IrH2{(R)‐dabin}(PR3)2]BF4 (R = iPr, Ph) are only poor (pre)catalysts for the enantioselective hydrogenation of acetophenone, complexes 6a–c catalyze the formation of 1‐phenylethanol in good enantiomeric excess [eemax = 82–84 % (S)] in the presence of base. The crystal structures of 1a, 4, and 5 have been determined. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

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Tris[1,3‐Bis(Diphenylphosphino)Propane]‐Heptahydridotriiridium(2 +) Bis(Tetrafluoroborate) and Bis[1, 3‐Bis‐(Diphenylphosphino)Propane]‐Pentahydridodiiridium(1+) Tetrafluoroborate

Cited by 3 publications

References 3 publications

Using Balancing Chemical Equations as a Key Starting Point To Create Green Chemistry Exercises Based on Inorganic Syntheses Examples

Using Balancing Chemical Equations as a Key Starting Point To Create Green Chemistry Exercises Based on Inorganic Syntheses Examples

Mixed‐Metal‐Gold Phosphine Cluster Compounds

Synthesis and Catalytic Applications of Chiral Hydridoiridium(III) Complexes with Diamine/Bis(monophosphane) and Diamine/Diphosphane Coordination

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