X-Ray crystal structure of bis[(propylthio)acetato]cobalt(II) hexamer

Structural and Functional Evolution of Metallacrowns

“…12-MC-6 complexes with oxygen one-atom bridges can be synthesized with ring metals Mg II , 757 Al III , 758 Ti IV (Figure 102), 759 V IV , [760][761][762][763] Cr III , 764 mixed-valent Mn II 2 Mn III 4 (disordered over all metal sites), 765 mixed-valent Mn II 3 Mn III 3 , 766-769 Mn III , 770 Fe II , 771 Fe III , 90,[772][773][774][775][776][777][778][779] Co II , [780][781][782] Ni II , 781 Cu II , [783][784][785] Zn II , 786 Nb IV , 787 Mo VI , 788 In III , 778 Sb V , 789 Hf IV , 790 Pb II , 791 mixedmetal Ni II 2 Cr VI 4 , 792 and mixed-metal Ni II 2 Mo VI 4 . 793 Whereas some 12-MC-6 complexes do not have a guest within the central cavity, many 12-MC-6 complexes may trap a guest within the central cavity: 12-MC V IV -6 encapsulates Na I , 760,761 Mn II , 762 and Fe II ; 763 12-MC Mn II 2 Mn III 4 -6 encapsulates Mn II ; 765 12-MC Mn II 3 Mn I...…”

“…12-MC-6 complexes with oxygen one-atom bridges can be synthesized with ring metals Mg II , Al III , Ti IV (Figure ), V IV , − Cr III , mixed-valent Mn II 2 Mn III 4 (disordered over all metal sites), mixed-valent Mn II 3 Mn III 3 , − Mn III , Fe II , Fe III , ,− Co II , − Ni II , Cu II , − Zn II , Nb IV , Mo VI , In III , Sb V , Hf IV , Pb II , mixed-metal Ni II 2 Cr VI 4 , and mixed-metal Ni II 2 Mo VI 4 . Whereas some 12-MC-6 complexes do not have a guest within the central cavity, many 12-MC-6 complexes may trap a guest within the central cavity: 12-MC V IV -6 encapsulates Na I , , Mn II , and Fe II ; 12-MC Mn II 2 Mn III 4 -6 encapsulates Mn II ; 12-MC Mn II 3 Mn III 3 -6 encapsulates Mn II ; − 12-MC Mn III -6 encapsulates Na I ; 12-MC Fe II -6 encapsulates an Fe III ion; 12-MC Fe III -6 encapsulates Li I 90,775 and Na I (Figure ); ,, 12-MC Cu II -6 encapsulates two Na I ions; 12-MC Zn II -6 encapsulates Zn II ; and 12-MC Mo VI -6 encapsulates an Fe II ion .…”

Structure of bis[(isopropylthio)acetato]copper(II) dihydrate

“…1975). Accordingly, various structures for alkylthioacetato complexes of metals are expected; for example, bisl(propylthio)acetato]cobalt(II) consists of hexameric units (Shimoi, Ebina, Ouchi, Yoshino & Takeuchi, 1979). In the case of bisl(isopropylthio)-acetato]copper(lI) dihydrate, two kinds of crystals were obtained: a pale-blue complex, which has spectral properties similar to those of other Cu n (alkylthio)-acetates, and a black-violet isomer.…”