Unstable complexes of sandwich compounds and small molecules. 5. Complex formation of carbon dioxide molecules with organometallic compounds of transition elements at low temperatures

1988 ◽  
Vol 37 (10) ◽  
pp. 2068-2070 ◽  
Author(s):  
I. I. Grinval'd ◽  
B. V. Lokshin ◽  
N. K. Rudnevskii ◽  
V. P. Mar'in
Keyword(s):  
Carbon Dioxide ◽  
Complex Formation ◽  
Small Molecules ◽  
Low Temperatures ◽  
Organometallic Compounds ◽  
Transition Elements ◽  
Sandwich Compounds

Spectroscopy of unstable complexes of organometallic compounds with small molecules at low temperatures

1990 ◽  
Vol 222 (1-2) ◽  
pp. 11-20 ◽  
Author(s):  
B.V. Lokshin ◽  
I.I. Greenwald
Keyword(s):  
Small Molecules ◽  
Low Temperatures ◽  
Organometallic Compounds

Studies on the abstraction of small molecules from organometallic compounds by Rh(PPh3)3Cl

1979 ◽  
Vol 34 ◽  
pp. 197-209 ◽  
Author(s):  
Erven J. Kuhlmann ◽  
John J. Alexander
Keyword(s):  
Small Molecules ◽  
Organometallic Compounds

Control of Insects with Fumigants at Low Temperatures: Toxicity of Fumigants in Atmospheres of Carbon Dioxide

1978 ◽  
Vol 71 (2) ◽  
pp. 307-309 ◽  
Author(s):  
E. J. Bond ◽  
C. T. Buckland
Keyword(s):  
Carbon Dioxide ◽  
Low Temperatures

Complex Formation of Semifluorinated γ-Cyclodextrin and Surfactants in Liquid Carbon Dioxide

2006 ◽  
Vol 45 (10) ◽  
pp. 3434-3437 ◽  
Author(s):  
Ha Soo Hwang ◽  
Min Young Lee ◽  
Yeon Tae Jeong ◽  
Seong-Soo Hong ◽  
Yeong-Soon Gal ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Complex Formation ◽  
Liquid Carbon ◽  
Liquid Carbon Dioxide

Organometallic compounds of the d-block transition elements: classification of ligands and theories of bonding

1968 ◽  
pp. 150-167
Author(s):  
G. E. Coates ◽  
M. L. H. Green ◽  
P. Powell ◽  
K. Wade
Keyword(s):  
Organometallic Compounds ◽  
Transition Elements

scholarly journals Tertiary Amines Paired with Trialkyl Boranes: A Simple Organocatalyst for Fully Alternating Copolymerization of Carbon Dioxide and Propylene Oxide

2020 ◽  
Author(s):  
Xing-Hong Zhang
Keyword(s):  
Carbon Dioxide ◽  
Small Molecules ◽  
Propylene Oxide ◽  
Average Molecular Weight ◽  
Tertiary Amines ◽  
Carbon Dioxide Co2 ◽  
Poly Propylene ◽  
Alternating Copolymerization ◽  
Completely Alternating ◽  
Huge Challenge

Metal-free synthesis of fully alternating polycarbonates from carbon dioxide (CO2) and epoxides is highly desired but a huge challenge. Here, we disclose the combination of tertiary amines with trialkyl boranes for completely alternating copolymerization of CO2 with epoxides. Triethylamine (TEA) pairing with triethyl borane (TEB), the simplest catalyst for the copolymerization of CO2 and propylene oxide (PO), afforded fully alternating poly(propylene carbonate) (PPC) with a turnover frequency (TOF) of 54 h-1 at 60 oC. Remarkably, diamine such as, N,N,N',N'-tetraethylethylenediamine (TEED) and triamine such as N,N,N',N'',N''-pentamethyldiethylene triamine (PMDETA) pairing with TEB exhibited improved the copolymer selectivity of up to 99%. Supplementally, the effect of trialkylborane structure on the copolymerization were also investigated. Moreover, PPCs prepared from these tertiary amines/ trialkyl boranes Lewis pairs showed the head-to-tail diad content of around 80%. The number-average molecular weight of PPC was up to 56.0 kg/mol with narrow distribution (Đ =1.16) and could be easily adjusted by simply varying the feeding ratios. The 1H NMR spectra and MALDI-TOF-MS spectra suggest that both tertiary amine-activating CO2 and TEB-masked end anions cooperatively promote the fully alternating CO2/epoxide copolymerization. This work provides an organocatalytic platform for well-defined CO2/epoxide copolymers using simple small molecules with high atomic utilization.<br>

Reactions and structures of organometallic compounds of the transition elements

1968 ◽  
pp. 183-214
Author(s):  
G. E. Coates ◽  
M. L. H. Green ◽  
P. Powell ◽  
K. Wade
Keyword(s):  
Organometallic Compounds ◽  
Transition Elements

Computational UV Spectra for Amorphous Solids of Small Molecules

2021 ◽  
Author(s):  
Austin Michael Wallace ◽  
Ryan C. Fortenberry
Keyword(s):  
Carbon Dioxide ◽  
Interstellar Medium ◽  
Small Molecules ◽  
Gas Phase ◽  
Amorphous Solids ◽  
Uv Spectra ◽  
Ammonia Water ◽  
Gas Phase Molecules ◽  
High Level

Ices in the interstellar medium largely exist as amorphous solids composed of small molecules including ammonia, water, and carbon dioxide. Describing gas-phase molecules can be readily accomplished with current high-level...

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