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LITlib - Excel Power Functions Pack
 
Add-in for Excel that adds additional cell functions to Excel.

litLIB Help - BondDihedralAngle function
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Numeric - BondDihedralAngle

Syntax:
BondDihedralAngle(Atom1, Atom2, Atom3,Atom4)

Description:
Returns the dihedral angle in degrees of the angle defined by the four atoms.

The dihedral angle is the angle between two planes. The first plane is defined by Atom1, 2 and 3. The second plane is defined by Atom2, 3 and 4.

AtomN: XYZ coordinates of atom N.

Example:
=BondDihedralAngle(A1:C1,A2:C2,A3:C3,A4:C4)

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