Triple Bond: A covalent bond that involves 3 bonding pairs. In the valence bond theory, one of the bonds in a triple bond is a sigma bond and the other two are pi bonds. For example, the central bond in acetylene is a triple bond: H-cidentc-H.

 

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Triple Bond: A covalent bond that involves 3 bonding pairs. In the valence bond theory, one of the bonds in a triple bond is a sigma bond and the other two are pi bonds. For example, the central bond in . . . View Full Definition

Multiple Bond: Sharing of more than one electron pair between bonded atoms. A double bond consists of two shared pairs of electrons; a triple bond consists of three shared pairs.

Sigma Bond: In the valence bond theory, a sigma bond is a valence bond that is symmetrical around the imaginary line between the bonded atoms. Most single bonds are sigma bonds.

Public-Purpose Bond: A specific type of municipal bond used to finance public projects such as roads or government buildings. Interest on municipal bonds is federal income tax-free.

Public Housing Authority Bond: Bonds of local public housing agencies that are secured by the federal government and whose proceeds are used to provide low-rent housing.

Pure Discount Bond: A bond that will make only one payment of principal and interest. Also called a zero-coupon bond or a single-payment bond.

Put Bond: A bond that the holder may choose either to exchange for par value at some date or to extend for a given number of years. If the price is above par, the put is a 'premium put.'

Registered Bond: When a bond is registered, the name of the owner and the particulars of the bond are recorded by the issuer or the issuer's agent. When registered bonds are issued in certificate form, a bon . . . View Full Definition

Refunded Bond: Also called a prerefunded bond, a bond that originally may have been issued as a general obligation or revenue bond but that is now secured by an escrow fund consisting entirely of direct U. . . . View Full Definition

Private-Purpose Bond: A municipal bond allowing more than 10% of the proceeds go to private activities.