Significant evidence of C⋯O and C⋯C long-range contacts in several heterodimeric complexes of CO with CH3–X, should one refer to them as carbon and dicarbon bonds!

2014 ◽  
Vol 16 (32) ◽  
pp. 17238-17252 ◽  
Author(s):  
Pradeep R. Varadwaj ◽  
Arpita Varadwaj ◽  
Bih-Yaw Jin
Keyword(s):  
Carbon Dioxide ◽  
Long Range ◽  
Intermolecular Complex ◽  
Significant Evidence

An illustrated example of a ‘dicarbon bond’ formed between a pair of two carbon atoms of the OC⋯CH3–Cl3intermolecular complex, one corresponding to the methylated carbon in 1,1,1-trichloro-ethane (CH3–Cl3) and one to the carbon in the carbon dioxide (CO) molecule.

scholarly journals Atmospheric CO2 measurements with a 2-μm DIAL instrument

2018 ◽  
Vol 176 ◽  
pp. 05045 ◽  
Author(s):  
Erwan Cadiou ◽  
Jean-Baptiste Dherbecourt ◽  
Guillaume Gorju ◽  
Jean-Michel Melkonian ◽  
Antoine Godard ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Long Range ◽  
Direct Detection ◽  
Atmospheric Co2 ◽  
Scattered Signal ◽  
Differential Absorption ◽  
Differential Absorption Lidar ◽  
Atmospheric Concentration ◽  
Concentration Measurements ◽  
Parametric Source

We report on ground-based atmospheric concentration measurements of carbon dioxide, using a pulsed direct detection differential absorption lidar operating at 2051 nm. The transmitter is based on a tunable parametric source emitting 10-mJ energy, 10-ns duration Fourier-limited pulses. Range resolved concentration measurements have been carried out on the aerosol back-scattered signal. Cloud signals have been used to get long range integrated-path measurements.

Carbon Dioxide and the Environment: A Problem of Uncertainty

1985 ◽  
Vol 28 (2) ◽  
pp. 60-66
Author(s):  
John Lemons
Keyword(s):  
Carbon Dioxide ◽  
Adverse Effects ◽  
Carbon Cycle ◽  
Long Range ◽  
Scientific Knowledge ◽  
Fossil Fuels ◽  
Energy Use ◽  
Future Generations ◽  
Remedial Action

The combustion of fossil fuels increases atmospheric levels of carbon dioxide. This may cause a long-term warming of the atmosphere. Solutions to the carbon dioxide problem are particularly difficult because adverse effects will be felt by future generations, but remedial action and sacrifices must be made by present generations. Decisions regarding the problem which affect both the immediate and long-range future must be made deliberately or by default in perhaps only 15-20 years, before we are reasonably confident with our knowledge of the problem and before we know whether it will, in fact, occur. Much of the uncertainty involves projections of future energy use, and scientific knowledge of the carbon cycle and the environment.

scholarly journals THz time-domain spectroscopy of mixed CO2–CH3OH interstellar ice analogs

2016 ◽  
Vol 18 (30) ◽  
pp. 20199-20207 ◽  
Author(s):  
Brett A. McGuire ◽  
Sergio Ioppolo ◽  
Marco A. Allodi ◽  
Geoffrey A. Blake
Keyword(s):  
Carbon Dioxide ◽  
Long Range ◽  
Time Domain ◽  
Thz Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Interstellar Ice

THz spectroscopy provides an exquisitely sensitive probe into the long-range structure and segregation of mixtures of two primary interstellar ice constituents: carbon dioxide and methanol.

Long-range coherence length of carbon dioxide near its critical point

1970 ◽  
Vol 32 (2) ◽  
pp. 95-96 ◽  
Author(s):  
B. Chu ◽  
J.S. Lin ◽  
J.A. Duisman
Keyword(s):  
Carbon Dioxide ◽  
Critical Point ◽  
Long Range ◽  
Coherence Length

scholarly journals (ECS 236th) Pulsed Electrodeposition of Carbon Dioxide Reduction Electrocatalysts for Space Applications

2020 ◽  
Author(s):  
Brian Skinn ◽  
Sujat Sen ◽  
McLain Leonard ◽  
DAN WANG ◽  
Fikile R. Brushett ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Formic Acid ◽  
Long Range ◽  
Life Support ◽  
Gas Diffusion ◽  
Space Applications ◽  
Co2 Electroreduction ◽  
Pulsed Electrodeposition

Space programs around the globe have begun to consider the logistical demands of missions beyond the orbital neighborhood of Earth. Unlike local installations such as the International Space Station, long-range missions will not have the option to resupply critical materials from Earth. Thus, the development of capabilities for what is often termed “In-Situ Resource Utilization” (ISRU) have been a continuing focus of research through NASA and other agencies. One particular long-range mission of interest is to place human astronauts on Mars; the major component of the thin Martian atmosphere is carbon dioxide, making CO2 a natural input to ISRU technologies for production of carbon-containing materials. Production of mission consumables from in-situ Mars resources will be critical to enabling human exploration of Mars, in part by minimizing the number and size of descent/ascent vehicles. Potential ISRU products from CO2 include that seem likely to provide significant mission benefits with minimal infrastructure required are propellants (e.g., hydrocarbons), fuel cell reactants (e.g., formic acid, methanol, carbon monoxide), and life support consumables (e.g., oxygen). The first portion of this talk will comprise a high-level overview of the chemical transformations that can be imparted to CO2 via electrocatalysis on gas-diffusion electrodes (GDEs), in the form of a summary of literature reports on the catalytic performance of a wide variety of single-metallic and metal-alloy systems. The remainder will encompass an exposition of the electrocatalytic performance of tin and copper single-metal GDE electrocatalysts prepared by pulsed electrodeposition. These metals are well known for their ability to reduce carbon dioxide to formic acid and hydrocarbons/carbon monoxide, respectively, and are under active development in numerous academic research groups and industrial entities to this end. These experimental results clearly demonstrate the power and flexibility of the pulse/pulse-reverse electrodeposition approach to catalyst fabrication, as evidenced by the appreciable effects of the pulsed-waveform electrodeposition parameters on CO2 electroreduction product distribution and total current density.

scholarly journals The impact of local winds and long-range transport on the continuous carbon dioxide record at Mount Waliguan, China

Tellus B ◽  
2003 ◽  
Vol 55 (2) ◽  
pp. 145-158 ◽  
Author(s):  
Lingxi Zhou ◽  
Jie Tang ◽  
Yupu Wen ◽  
Jinlong Li ◽  
Peng Yan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Long Range ◽  
Long Range Transport ◽  
Range Transport ◽  
The Impact ◽  
Local Winds
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