Dioxime and pyridine-2-aldoxime complexes of

The synthesis and pH-dependent behaviour of Re(CO)3 conjugates with diimine phenolic ligands

“…17 The C-O bonds lengths are normal for Re(CO) 3 + species (∼1.14-1.16 Å). 18 The Re-C bond lengths are in agreement with typical ranges (∼1.87-1.95 Å), and the Re-X (Cl or Br) bond lengths are as expected. Re(CO) 3 -diimine complexes, including those reported in this work, show Re-N bonds ranging from ∼2.14-2.26 Å.…”

The synthesis of biologically relevant conjugates of Re(CO)3 using pyridine-2-carboxyaldehyde

“…The carbonyls adopt the expected facial geometry and exhibit standard bond lengths and angles for Re(CO) 3 compounds. The Re-Cl bond length (2.4792(17) Å) is typical for the Re(CO) 3 Cl compounds, such as those that we previously observed in the similarly structured oxime and dioxime complexes [37]. The C-O bond length of the aldehyde (1.241(7) Å) is slightly lengthened versus that seen in free pyridine aldehydes, indicative of back bonding to the carbonyl oxygen.…”

Preparation and characterization of rhenium (I) tricarbonyl dithiocarbamate compounds; Re(CO)3(S2CNMe2)(L)

“…One reason for this focus is that there remain common ligands that have not been extensively applied to the group 7 d 6 systems. We have presented reports on monodentate [22], bidentate [23,24], and tridentate [25,26] ligand systems over the past several years. In this paper we continue this series, looking at simple complexes of the dithiocarbamate ligand prepared in a straightforward manner.…”