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Carbon monoxide (chemical formula CO) is a poisonous, flammable gas that is colorless, odorless, tasteless, and slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest carbon oxide. In coordination complexes, the carbon monoxide ligand is called carbonyl. It is ...
In carbon monoxide (CO, isoelectronic with dinitrogen) the oxygen 2s orbital is much lower in energy than the carbon 2s orbital and therefore the degree of mixing is low. The electron configuration 1σ 2 1σ* 2 2σ 2 2σ* 2 1π 4 3σ 2 is identical to that of nitrogen.
In carbon monoxide, − C≡O +, the bond order between carbon and oxygen is 3. In thiazyl trifluoride N≡SF 3, the bond order between sulfur and nitrogen is 3, and between sulfur and fluorine is 1. In diatomic oxygen O=O the bond order is 2 (double bond). In ethylene H 2 C=CH 2 the bond order between the two
Phase behavior Triple point: 67.9 K (−205.1 °C), 15.35 kPa Critical point: 132.7 K (−140.3 °C), 3498 kPa, 11.1 mol/L (3.1×10 2 kg/m 3) : Std enthalpy change
σ bonding from electrons in CO's HOMO to metal center d-orbital. π backbonding from electrons in metal center d-orbital to CO's LUMO. The electrons are partially transferred from a d-orbital of the metal to anti-bonding molecular orbitals of CO (and its analogs). This electron-transfer strengthens the metal–C bond and weakens the C–O bond.
The highest occupied molecular orbital of CO is a σ MO Energy level scheme of the σ and π orbitals of carbon monoxide The lowest unoccupied molecular orbital (LUMO) of CO is a π* antibonding MO Diagram showing synergic π backbonding in transition metal carbonyls. Carbon monoxide bonds to transition metals using "synergistic pi* back ...
If you think you have carbon monoxide poisoning, stop using the appliances you think are causing the fumes, go outside and call 911. And contact your doctor, too.
In organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom. It is common to several classes of organic compounds (such as aldehydes , ketones and carboxylic acid ), as part of many larger functional groups.
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