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. Author manuscript; available in PMC: 2014 Sep 25.
Published in final edited form as: Chem Commun (Camb). 2013 Sep 25;49(74):10.1039/c3cc44573a. doi: 10.1039/c3cc44573a

Table 1.

Structural and energetic parameters of compounds 25

Crystallographic Data Computational Data

d (Å) θ (°) d′ (Å) θ ′ (°) δ (Å) τ (°) δ ′ (Å) τ ′ (°) d (Å) θ (°) d′ (Å) θ ′ (°) δ (Å) τ (°) δ ′ (Å) τ ′ (°) Enπ* (kcal/mol) Enπ* (kcal/mol)
2 2.84 109.9 3.26 126.5 2.69 64.3 2.73 63.4 2.94 108.8 3.34 129.3 2.72 63.9 2.77 62.9 0.75 0.01
3 2.74 63.1 2.74 63.1 2.74 63.6 2.74 63.6
4 3.27 113.4 3.69 135.0 3.00 54.6 3.08 53.5 3.30 108.4 3.78 141.4 3.03 54.3 3.10 53.2 1.14 0.00
5 2.95 54.5 2.95 54.5 3.02 54.5 3.02 54.5