TY - JOUR
T1 - Supramolecular Interactions of Group VI Metal Carbonyl Complexes
T2 - The Facilitating Role of 1,3-Bis(p-isocyanophenyl)urea
AU - Millard, Shaun
AU - Fothergill, Jenny W.
AU - Anderson, Zoe
AU - Brown, Eric C.
AU - King, Matthew D.
AU - Colson, Adam C.
N1 - Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/6/17
Y1 - 2019/6/17
N2 - An investigation of supramolecular phenomena involving zerovalent transition metal complexes was facilitated by the production of the ditopic isocyanide ligand 1,3-bis(p-isocyanophenyl)urea, which was synthesized via substoichiometric phosgenation of 4-isocyanophenylamine and used to coordinate group VI metal carbonyl fragments. The resulting binuclear organometallic complexes were observed to pack into ladder-like anisotropic arrays in the solid state. Crystallographic and computational evidence suggests that this packing motif can be attributed to a combination of intermolecular II-πand urea-πinteractions. Similar to other N,N′-diarylureas bearing electron-withdrawing groups, 1,3-bis(p-isocyanophenyl)urea and the organometallic complexes prepared therefrom also exhibit an affinity toward anion binding in nonaqueous solution. Equilibrium constants (K) for the formation of host-guest complexes between the organometallic derivatives of 1,3-bis(p-isocyanophenyl)urea and chloride, nitrate, and acetate anions exceed 103, 104, and 105 M-1, respectively.
AB - An investigation of supramolecular phenomena involving zerovalent transition metal complexes was facilitated by the production of the ditopic isocyanide ligand 1,3-bis(p-isocyanophenyl)urea, which was synthesized via substoichiometric phosgenation of 4-isocyanophenylamine and used to coordinate group VI metal carbonyl fragments. The resulting binuclear organometallic complexes were observed to pack into ladder-like anisotropic arrays in the solid state. Crystallographic and computational evidence suggests that this packing motif can be attributed to a combination of intermolecular II-πand urea-πinteractions. Similar to other N,N′-diarylureas bearing electron-withdrawing groups, 1,3-bis(p-isocyanophenyl)urea and the organometallic complexes prepared therefrom also exhibit an affinity toward anion binding in nonaqueous solution. Equilibrium constants (K) for the formation of host-guest complexes between the organometallic derivatives of 1,3-bis(p-isocyanophenyl)urea and chloride, nitrate, and acetate anions exceed 103, 104, and 105 M-1, respectively.
UR - http://www.scopus.com/inward/record.url?scp=85067488402&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.9b00917
DO - 10.1021/acs.inorgchem.9b00917
M3 - Article
C2 - 31124666
AN - SCOPUS:85067488402
SN - 0020-1669
VL - 58
SP - 8130
EP - 8139
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 12
ER -