Expanding Dinitrogen Reduction Chemistry to Trivalent Lanthanides via the LnZ3/Alkali Metal Reduction System:  Evaluation of the Generality of Forming Ln2(μ-η2:η2-N2) Complexes via LnZ3/K

2004 ◽  
Vol 126 (44) ◽  
pp. 14574-14582 ◽  
Author(s):  
William J. Evans ◽  
David S. Lee ◽  
Daniel B. Rego ◽  
Jeremy M. Perotti ◽  
Stosh A. Kozimor ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Reduction ◽  
System Evaluation ◽  
Trivalent Lanthanides ◽  
Reduction System ◽  
Dinitrogen Reduction

Accessing Lanthanide Diiodide Reactivity for Coupling Alkyl Chlorides to Carbonyl Compounds via the NdI3/Alkali Metal Reduction System

2005 ◽  
Vol 24 (8) ◽  
pp. 1989-1991 ◽  
Author(s):  
William J. Evans ◽  
Penny S. Workman
Keyword(s):  
Alkali Metal ◽  
Carbonyl Compounds ◽  
Metal Reduction ◽  
Reduction System

Expanding the LnZ3/Alkali-Metal Reduction System to Organometallic and Heteroleptic Precursors: Formation of Dinitrogen Derivatives of Lanthanum

2004 ◽  
Vol 43 (41) ◽  
pp. 5517-5519 ◽  
Author(s):  
William J. Evans ◽  
David S. Lee ◽  
Charlie Lie ◽  
Joseph W. Ziller
Keyword(s):  
Alkali Metal ◽  
Metal Reduction ◽  
Reduction System ◽  
Derivatives Of

Expanding the LnZ3/Alkali-Metal Reduction System to Organometallic and Heteroleptic Precursors: Formation of Dinitrogen Derivatives of Lanthanum

2004 ◽  
Vol 116 (41) ◽  
pp. 5633-5635 ◽  
Author(s):  
William J. Evans ◽  
David S. Lee ◽  
Charlie Lie ◽  
Joseph W. Ziller
Keyword(s):  
Alkali Metal ◽  
Metal Reduction ◽  
Reduction System ◽  
Derivatives Of

Room Temperature Alkali Metal Reduction of Carbon Dioxide

2020 ◽  
Author(s):  
Lucas A. Freeman ◽  
Akachukwu D. Obi ◽  
Haleigh R. Machost ◽  
Andrew Molino ◽  
Asa W. Nichols ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Alkali Metals ◽  
Room Temperature ◽  
Chemical Reduction ◽  
Bond Cleavage ◽  
Open Shell ◽  
Metal Reduction ◽  
One Pot ◽  
Earth Abundant ◽  
Electron Reduction

The reduction of the relatively inert carbon–oxygen bonds of CO<sub>2</sub> to access useful CO<sub>2</sub>-derived organic products is one of the most important fundamental challenges in synthetic chemistry. Facilitating this bond-cleavage using earth-abundant, non-toxic main group elements (MGEs) is especially arduous because of the difficulty in achieving strong inner-sphere interactions between CO<sub>2</sub> and the MGE. Herein we report the first successful chemical reduction of CO<sub>2</sub> at room temperature by alkali metals, promoted by a cyclic(alkyl)(amino) carbene (CAAC). One-electron reduction of CAAC-CO<sub>2</sub> adduct (<b>1</b>) with lithium, sodium or potassium metal yields stable monoanionic radicals clusters [M(CAAC–CO<sub>2</sub>)]<sub>n</sub>(M = Li, Na, K, <b> 2</b>-<b>4</b>) and two-electron alkali metal reduction affords open-shell, dianionic clusters of the general formula [M<sub>2</sub>(CAAC–CO<sub>2</sub>)]<sub>n </sub>(<b>5</b>-<b>8</b>). It is notable that these crystalline clusters of reduced CO<sub>2</sub> may also be isolated via the “one-pot” reaction of free CO<sub>2</sub> with free CAAC followed by the addition of alkali metals – a reductive process which does not occur in the absence of carbene. Each of the products <b>2</b>-<b>8</b> were investigated using a combination of experimental and theoretical methods.<br>

The alkali metal reduction of pyrene structural and preparative aspects

Tetrahedron ◽  
1984 ◽  
Vol 40 (10) ◽  
pp. 1701-1711 ◽  
Author(s):  
C. Schnieders ◽  
K. Müllen ◽  
W. Huber
Keyword(s):  
Alkali Metal ◽  
Metal Reduction

On the alkali metal reduction of phenalene

1973 ◽  
Vol 14 (18) ◽  
pp. 1603-1605 ◽  
Author(s):  
Robert L. Shannon ◽  
Richard H. Cox
Keyword(s):  
Alkali Metal ◽  
Metal Reduction

Über die elektronischen Energieniveaus des N-Isopropylcarbazols und seiner Radikalionen

1969 ◽  
Vol 24 (12) ◽  
pp. 1923-1930 ◽  
Author(s):  
Walter Klöpffer
Keyword(s):  
Alkali Metal ◽  
Electrochemical Oxidation ◽  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electron Affinity ◽  
Energy Gap ◽  
Electronic Absorption Spectra ◽  
Metal Reduction ◽  
Radical Ions ◽  
Ionization Energies

Abstract The first two ionization energies of N-isopropyl carbazole (NIPCA) have been determined to be 7.4 and 8.0 eV. The electron affinity amounts to 0 eV. The energy gap of solid NIPCA is estimated to be about 4.4 eV. Positive and negative radical ions of NIPCA have been prepared by electrochemical oxidation and alkali metal reduction respectively; electronic absorption spectra of the radical ions are presented.

Early developments in lanthanide-based dinitrogen reduction chemistry

2005 ◽  
Vol 83 (4) ◽  
pp. 375-384 ◽  
Author(s):  
William J Evans ◽  
David S Lee
Keyword(s):  
Nitrogen Fixation ◽  
Alkali Metal ◽  
Key Words ◽  
Entire Series ◽  
Dinitrogen Reduction ◽  
Dinitrogen Complex

Although the first crystallographically characterized lanthanide dinitrogen complex was reported in 1988 with samarium, it is only in recent years that this field has expanded to include fully characterized examples for the entire series of lanthanides. The development of lanthanide dinitrogen chemistry has been aided by a series of unexpected results that present some good lessons in the development of science. This review presents a chronological account of the lanthanide dinitrogen chemistry discovered in our laboratory through the summer of 2004.Key words: lanthanides, dinitrogen, reduction, alkali metal, nitrogen fixation, diazenido.

Tris-[8]annulenyl Isocyanurate Trianion Triradical and Hexa-anion from the Alkali Metal Reduction of [8]Annulenyl Isocyanate

2015 ◽  
Vol 80 (11) ◽  
pp. 5851-5858 ◽  
Author(s):  
Steven J. Peters ◽  
Joseph R. Klen
Keyword(s):  
Alkali Metal ◽  
Metal Reduction
Sign in / Sign up

Export Citation Format

Share Document