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. Author manuscript; available in PMC: 2014 Jul 13.
Published in final edited form as: Polyhedron. 2013 Feb 19;58:206–217. doi: 10.1016/j.poly.2013.02.031

Table 3.

Comparisons of Selected Interatomic Distances (Å) and Volumes (Å3) of [M4Q4]0,1+,2+ Clusters with Q = S2−, Se2−, Te2− a

cluster Fe-Q Fe⋯Fe Q⋯Q M4 Q4 M4Q4
S2−/ Cl−/ 1+ 2.32 2.79 3.65 2.55 5.72 10.02
Se2+/ Cl−/ 2+ 2.41 2.83 3.83 2.66 6.60 10.82
S2−/ Cl−/ 2+ 2.29 2.77 3.59 2.51 5.46 9.75
S2−/ [SAlk]−/ 1+ 2.32 2.76 3.66 2.49 5.77 9.88
Se2−[SAlk]−/ 1+ 2.44 2.81 3.92 2.61 7.08 10.92
Te2−/ [SAlk}/ 1+ 2.63 2.82 4.30 2.62 9.29 12.04
S2−/ [SAr]−/ 1+ 2.31 2.74 3.65 2.42 5.74 9.68
Se2−/ [SAr]−/ 1+ 2.44 2.76 3.92 2.48 7.06 10.57
Te2−/ [SAr]−/ 1+ 2.63 2.82 4.30 2.63 9.25 12.06
S2−/ [SAlk]−/ 2+ 2.29 2.75 3.61 2.44 5.52 9.61
Se2−/ [SAlk]−/ 2+ 2.42 2.80 3.87 2.57 6.79 10.67
S2−/ [SAr]−/ 2+ 2.28 2.73 3.60 2.41 5.51 9.52
Se2−/ [SAr]−/ 2+ 2.41 2.78 3.85 2.54 6.72 10.54
Te2−/ PR3/ 0 2.61 2.65 4.34 2.20 9.66 10.80
S2− / PR3/ 1+ 2.27 2.71 3.60 2.34 5.49 9.34
Te2−/ PR3/ 1+ 2.59 2.65 4.30 2.19 9.37 10.66
S2−/ CO/ 0 2.33 3.45 3.11 4.86 3.53 13.10
Se2−/ CO/ 0 2.45 3.63 3.27 5.65 4.13 15.26
a

Average values are used when multiple observations are available