ABSTRACT
A. Characteristic lengths of single bonds in Å. As B Br C Cl F Ge H I N O P S Sb Se Si
As 2.10 Br 2.32 1.89 2.28 C 1.98 1.58 1.93 1.53 Cl 2.17 1.74 2.14 1.77 1.99 F 1.71 1.31 1.76 1.35 1.63 1.41 Ge 2.30 1.95 2.15 1.73 2.40 H 1.51 1.19 1.41 1.09 1.28 0.92 1.53 0.74 I 2.12 2.47 2.13 2.32 1.91 2.51 1.61 2.67 N 1.39 1.46 1.90 1.37 1.02 1.45 O 1.35 1.42 1.70 1.42 0.96 1.43 1.48 P 1.94 2.22 1.85 2.04 1.57 1.42 1.65 2.25 S 2.24 1.82 2.05 1.56 1.34 2.00 Sb 2.49 2.33 1.88 1.70 2.27 Se 1.95 1.71 1.47 2.33 Si 2.21 1.87 2.05 1.58 1.48 2.44 1.63 2.14 2.33 Sn 2.50 2.14 2.30 1.94 1.71 2.67 Te 1.82 1.66
B. Lengths of multiple bonds (non-ring molecules) in Å. C═C 1.34 C≡C 1.20 C═N 1.21 C≡N 1.16 C═O 1.21 C═S 1.61 N═N 1.24 N≡N 1.13 N═O 1.18 O═O 1.21
C. Effect of environment on carbon-carbon single bonds in Å (other single bonds not shown). From Reference 3. Configuration C─C Length Examples of Molecules C─C 1.526 H3C─CH3 C─C═ 1.501 H3C─CH═CH2 C─C≡ 1.459 H3C─C≡CH ═C─C═ 1.467 H2C═CH─CH═CH2 ≡C─C═ 1.445 HC≡C─CH═CH2 ≡C─C≡ 1.378 HC≡C─C≡CH
D. Some metal-carbon bond lengths in gas-phase molecules in Å. Al─C 1.96 Be─C 1.70 Bi─C 2.26 Cd─C 2.11 Co─C 1.88 Cr─C 1.92* Cu─C 1.83 Fe─C 1.82* Hg─C 2.08 Mo─C 2.06* Ni─C 1.83 Pb─C 2.24 Sn─C 2.14 V─C 2.02* W─C 2.06* Zn─C 1.93
