Table 2.

Iβ cellulose torsion angles (degrees) in 6 × 3, 234432 and 34443 models.

	Origin				Center
	Φ	Ψ	χ	χ′	Φ	Ψ	χ	χ′
Expt.	−88.7	−147.1	158.0	−83.0	−98.5	−142.3	170.0	−70.0
333333	−93.3	−146.1	168.9	−73.4	−90.3	−144.1	175.2	−67.1
34443	−93.2	−146.3	168.0	−74.2	−90.3	−144.1	176.2	−65.7
234432	−93.4	−146.5	170.6	−71.6	−90.0	−143.7	176.5	−65.0

Φ: O5C1O4C4, Ψ: C1O4C4C5, χ: O5C5C6O6, χ′: C4C5C6O6. Experiment values are from refs^1,2.