Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Marion E. Cass"'
1
Improved Syntheses and Expanded Analyses of the Enantiomerically Enriched Chiral Cobalt Complexes Co(en)3I3 and Co(diNOsar)Br3
Autor: Michael J. McClellan, Marion E. Cass
Publikováno v: Journal of Chemical Education. 92:1766-1770
This communication is a collection of additions and modifications to two previously published classic inorganic synthesis laboratory experiments. The experimental protocol for the synthesis and isolation of enantiomerically enriched Λ-(or Δ-)Co(en)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f56adc26dcfe947fa2c87c2f92d55f01
https://doi.org/10.1021/acs.jchemed.5b00140
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2
In Search of the Bailar and Rây−Dutt Twist Mechanisms That Racemize Chiral Trischelates: A Computational Study of ScIII, TiIV, CoIII, ZnII, GaIII, and GeIV Complexes of a Ligand Analogue of Acetylacetonate
Autor: Henry Rzepa, Marion E. Cass
Publikováno v: Inorganic Chemistry. 46:8024-8031
Two nondissociative processes, a Bailar twist that proceeds through a transition state of D3h symmetry and a Rây−Dutt twist mechanism that proceeds through a transition state of C2v symmetry, as well as dissociative/associative processes are poten
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18426748b641c6c19f3f9c1540bd2b53
https://doi.org/10.1021/ic062473y
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3
High Quantum Yield Sensitization of Nanocrystalline Titanium Dioxide Photoelectrodes with cis-Dicyanobis(4,4‘-dicarboxy-2,2‘-bipyridine)osmium(II) or Tris(4,4‘-dicarboxy-2,2‘-bipyridine)osmium(II) Complexes
Autor: Nathan S. Lewis, Iver Lauermann, Marion E. Cass, Katherine E. Pomykal, Stephen J. Doig, Geneviève Sauvé
Publikováno v: The Journal of Physical Chemistry B. 104:3488-3491
Osmium polypyridyl complexes were used as sensitizers in solar cells that utilize nanocrystalline titanium dioxide photoelectrodes. Exposure of TiO_2 electrodes to sources of Os^(II)(H_2L‘)_2(CN)_2 (where L‘ is 4,4‘-dicarboxylato-2,2‘-bipyrid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8d2d9e3c8bfbb5770c074d9213a8877
https://doi.org/10.1021/jp994033g
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5
Hydrogen Bonding in Catechoylamides
Autor: Kenneth N. Raymond, Marion E. Cass, Thomas M. Garrett
Publikováno v: Journal of Coordination Chemistry. 25:241-253
The siderophore enlerobactin has an extraordinary affinity for ferric ion. Hydrogen bonding has been proposed to play a significant role in the extra binding affinity enterobactin shows relative to synthetic analogues. These analogues contain 2,3-dih
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf6ccf084f9c9cfc87dcffd6487ccea3
https://doi.org/10.1080/00958979209409197
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6
In search of the Bailar and Rây-Dutt twist mechanisms that racemize chiral trischelates: a computational study of Sc(III), Ti(IV), Co(III), Zn(II), Ga(III), and Ge(IV) complexes of a ligand analogue of acetylacetonate
Autor: Henry S, Rzepa, Marion E, Cass
Publikováno v: Inorganic chemistry. 46(19)
Two nondissociative processes, a Bailar twist that proceeds through a transition state of D3h symmetry and a Rây-Dutt twist mechanism that proceeds through a transition state of C(2v) symmetry, as well as dissociative/associative processes are poten
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::40d66dbc96cfd2d4c2db0113016ac284
https://pubmed.ncbi.nlm.nih.gov/17718476
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7
A computational study of the nondissociative mechanisms that interchange apical and equatorial atoms in square pyramidal molecules
Autor: Marion E. Cass, Henry Rzepa
Publikováno v: Inorganic chemistry. 45(10)
The lowest energy transition state for the nondissociative apical/equatorial atom exchange mechanism for three square pyramidal AEX5 molecular species was calculated (CCSD(T)/pVTZ; B3LYP/pVTZ, aug-cc-pV5Z) to have a hemidirected geometry with C(s) sy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cb7e83cfbbe4e3b891b25203c9849bd
https://pubmed.ncbi.nlm.nih.gov/16676954
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8
Dye Sensitization of Nanocrystalline Titanium Dioxide with Osmium and Ruthenium Polypyridyl Complexes
Autor: Marion E. Cass, Nathan S. Lewis, George M. Coia, Katherine E. Pomykal, Stephen J. Doig, Iver Lauermann, Geneviève Sauvé
The goal of this work is to explore the idea of replacing the ruthenium metal center of polypyridine complexes with osmium to increase the overlap between the spectral response of the "Gratzel cell" and the solar spectrum. A series of osmium polypyri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ea6293c31f04889bcb0fdf8b58d4a7d
https://resolver.caltech.edu/CaltechAUTHORS:20170404-105006672
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9
Visualizing Metal Tris Chelates: Visualizations to Examine the Structure and Symmetry of Metal Tris Chelates: Symmetry Operations, Chirality, and Mechanisms (Bailar Twist and Rây-Dutt) that Racemize the Δ and Λ Isomers
Autor: Henry Rzepa, Marion E. Cass
Publikováno v: Journal of Chemical Education. 85:750
Highlights three animated visualizations—the C2 and C3 symmetry operations in chiral tris chelates, the assignment of absolute configurations in these molecules, and the non-dissociative mechanisms...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed546c87052bb41f99789c5d879c716a
https://doi.org/10.1021/ed085p750
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