Multiple Bonds

Multiple Bonds

 

a type of chemical bond formed by two or three electron pairs that are common to two directly bonded atoms, such as in ethylene H2C=CH2, formaldehyde H2C=O, acetylene HC=CH, and hydrogen cyanide H—C=N.

References in periodicals archive ?
Typically, customers with multiple bonds are people in crisis, often women and children fleeing domestic violence and people with severe mental illness, she said.
But the answer he gave Castleberry to Underwood's other question was convoluted: "Oftentimes, there are multiple bonds issued by the same issuer in the same series that are divided amongst buyers," Lewis wrote in the April 7, 2009, email to Castleberry.
Key statement: The invention relates to the use of polyorganosiloxanes having 3 or more siloxane units, which have one or more organic fractions R1, where R1 has one or more carbon-carbon multiple bonds and at least 4 carbon atoms, and wherein the presence of hydrocarbon fractions having a chain length of 5 to 50 carbon atoms is excluded, as additives in the processing of rubber.
Another factor is that as investors build up their cat-bond portfolios, they fear a single event causing loss to multiple bonds in their portfolio, Lalonde said.
He said Afghanistan is a brotherly country, close neighbour, with which Pakistan has multiple bonds of affinity, adding Pakistan values friendly and brotherly relations with the people of Afghanistan.
As a result, Markit moves prices for specific CUSIPS for specific reasons, in contrast to the common practice of moving prices for multiple bonds in a credit rating basket at the same time.
Since these multiple bonds do not convey additional information, we select the earliest issue among the multiple issues.
As a row in the periodic table is descended, the heavier elements have less and less tendency towards the formation of multiple bonds.
In the last essay, Daria Valentini underscores the relational aspect of female identity through bonding and friendship and looks into its impact on the construct of female identity: "It is only in relation to other women that Banti's main characters ultimately shape their identity, confronting the challenge of forming multiple bonds while maintaining a degree of separation" (50).
with One-Step Access to Multiple Bonds and Multiple Dealers
Multiple bonding between atoms is immensely important to chemistry, biology, physics and their associated industries; multiple bonds are both ubiquitous in everyday products and extremely useful functionalities for effecting chemical transformations.

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