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Figure 5
Comparison of all possible small-molecule Re⋯Re interactions. (a) Mogul search plots of the number of small-molecule hits utilizing Re⋯Re interactions containing the fac-[Re(CO)3]+ fragment as a search criterion found in the CSD database. Colour bars indicate the number of structure hit entries with respect to bond length (Å) in the CSD version update 5.37 data library. The minimum/maximum bond distances had a standard deviation of 0.129 Å and a mean value of 3.065 Å. (b) Data analysis of all small-molecule hits {not necessarily containing the fac-[Re(CO)3]+ fragment as illustrated in (a)} for Re⋯Re interactions as a search criterion in the CSD database. The longest Re⋯Re distance [3.4934 (6) Å] is found in a cyclic pentakis­(μ-hydrido)-icosacarbonyl-pentarhenium complex (CSD refcode PORYIE; Bergamo et al., 1998BB8), whereas the shortest is for a carboxylate-dirhenium complex (CSD refcode GUVTUO; Golichenko & Shtemenko, 2015BB25).

Volume 4| Part 3| May 2017| Pages 283-290
ISSN: 2052-2525