Search Results - "Schaefer III, Henry F"
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Electrophile Affinity: A Reactivity Measure for Aromatic Substitution
Published in Journal of the American Chemical Society (21-10-2009)“…The reactivity and regioselectivity of the electrophilic chlorination, nitration, and alkylation of benzene derivatives were rationalized by comparing…”
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2
Tensor Hypercontraction Form of the Perturbative Triples Energy in Coupled-Cluster Theory
Published in Journal of chemical theory and computation (14-03-2023)“…We present the working equations for a reduced-scaling method of evaluating the perturbative triples (T) energy in coupled-cluster theory, through the tensor…”
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3
Stable Silicon(0) Compound with a Si=Si Double Bond
Published in Science (American Association for the Advancement of Science) (22-08-2008)“…Dative, or nonoxidative, ligand coordination is common in transition metal complexes; however, this bonding motif is rare in compounds of main group elements…”
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4
Predicting Molecules--More Realism, Please
Published in Angewandte Chemie (International ed.) (08-09-2008)“…To be or not to be: The terms “viable” and “fleeting,” rather than the imprecise term “stable,” are proposed to describe hypothetical molecules whose existence…”
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5
NHC-Containing Manganese(I) Electrocatalysts for the Two-Electron Reduction of CO2
Published in Angewandte Chemie International Edition (12-05-2014)“…The synthesis and characterization of the first catalytic manganese N‐heterocyclic carbene complexes are reported:…”
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6
Carbene-Stabilized Diphosphorus
Published in Journal of the American Chemical Society (12-11-2008)“…The potassium graphite reduction of L:PCl3 leads to the formation of carbene-stabilized diphosphorus molecules, L:P−P:L, 1 (L: = :C{N(2,6-Pr i 2C6H3)CH}2) and…”
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Geometric Energy Derivatives at the Complete Basis Set Limit: Application to the Equilibrium Structure and Molecular Force Field of Formaldehyde
Published in Journal of chemical theory and computation (13-03-2018)“…Geometric energy derivatives which rely on core-corrected focal-point energies extrapolated to the complete basis set (CBS) limit of coupled cluster theory…”
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Highly Strained Pn(CH)3 (Pn = N, P, As, Sb, Bi) Tetrahedranes: Theoretical Characterization
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (01-04-2021)“…Recent experimental research by Cummins and co-workers has established the existence of a tetrahedrane molecule with one CH moiety replaced by phosphorus. We…”
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The Recently Synthesized Dimagnesiabutadiene and the Analogous Dimetalla-Beryllium, -Calcium, -Strontium, and -Barium Compounds
Published in Chemistry : a European journal (10-10-2016)“…The 2014 synthesis of the remarkable dimagnesium compound Mg2[C4(CH3)2(Si(CH3)3)2](C3H7)2(C4H8O)2 may point the way to a new chapter in alkaline earth…”
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10
Conclusive determination of ethynyl radical hydrogen abstraction energetics and kinetics
Published in Molecular physics (17-10-2020)“…The ethynyl radical (C $_2 $ 2 H) is ubiquitous, appearing in a variety of environments from interstellar space to oxy-acetylene flames. Under these diverse…”
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Probing the Potential Energy Profile of the I + (H2O)3 → HI + (H2O)2OH Forward and Reverse Reactions: High Level CCSD(T) Studies with Spin-Orbit Coupling Included
Published in Molecules (Basel, Switzerland) (16-01-2023)“…Three different pathways for the atomic iodine plus water trimer reaction I + (H2O)3 → HI + (H2O)2OH were preliminarily examined by the DFT-MPW1K method…”
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Vibrational analysis of the ubiquitous interstellar molecule cyclopropenylidene (c-C3H2): the importance of numerical stability
Published in Molecular physics (02-01-2020)“…Recent work on cyclopropenylidene, c-C H , sought to improve on past ab initio results with a complete basis set (CBS) quartic force field method capable of…”
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13
Fundamental Vibrational Analyses of the HCN Monomer, Dimer and Associated Isotopologues
Published in Chemphyschem (05-12-2018)“…In this work we provide high level ab initio treatments of the structures, vibrational frequencies, and electronic energies of the HCN monomer and dimer…”
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14
SN2P2: A Neutral Five-Membered Sulfur-Pnictogen(III) Ring
Published in Angewandte Chemie International Edition (19-01-2015)“…The novel aromatic ring compound 2,4‐diphospha‐3,5‐diaza‐thiole (cyclo‐SNPNP) was synthesized via flash pyrolysis of SP(N3)3 and characterized by IR…”
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Ethynyl Radical Hydrogen Abstraction Energetics and Kinetics Utilizing High-Level Theory
Published in ACS earth and space chemistry (18-07-2024)“…The ethynyl radical, C2H, is found in a variety of different environments ranging from interstellar space and planetary atmospheres to playing an important…”
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Student-Friendly Guide to Molecular Integrals
Published in Journal of chemical education (11-09-2018)“…Preceding even the Hartree–Fock method, molecular integrals are the very foundation upon which quantum chemical molecular modeling depends. Discussions of…”
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17
Proton-transfer in hydrogenated guanine-cytosine trimer neutral species, cations, and anions embedded in B-form DNA
Published in Physical chemistry chemical physics : PCCP (14-04-2014)“…The neutral DNA trimers with the hydrogen atom added to the C8 site of the middle guanine-cytosine (GC) base pair, the DNA trimers protonated at the N7 site of…”
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18
Covalent Hypercoordination: Can Carbon Bind Five Methyl Ligands?
Published in Angewandte Chemie International Edition (21-07-2014)“…C(CH3)5+ is the first reported example of a five‐coordinate carbon atom bound only to separate (that is, monodentate) carbon ligands. This species illustrate…”
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Structural Isomerization of the Gas-Phase 2-Norbornyl Cation Revealed with Infrared Spectroscopy and Computational Chemistry
Published in Angewandte Chemie International Edition (02-06-2014)“…In an attempt to produce the 2‐norbornyl cation (2NB+) in the gas phase, protonation of norbornene was accomplished in a pulsed discharge ion source coupled…”
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Are Neutral-Neutral Reactions Effective for the Carbon-Chain Growth of Cyanopolyynes and Polyacetylenes in Interstellar Space?
Published in The Astrophysical journal (20-09-1998)Get full text
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