TY - JOUR
T1 - Equatorial π-stacking interactions in diruthenium (II,III) tetracarboxylate complexes containing extended π-systems
AU - O'Rourke, Natasha F.
AU - Ronaldson, Michael
AU - Stanley Cameron, T.
AU - Wang, Ruiyao
AU - Aquino, Manuel A.S.
PY - 2013
Y1 - 2013
N2 - The synthesis of three new valent-averaged tetracarboxylatodiruthenium (II,III) complexes, [Ru2(1-naphthylacetate)4(H 2O)2](PF6)×4THF, 1×4THF, [Ru 2(2-naphthoate)4(THF)2](PF6) ×3THF, 2×3THF, and [Ru2(coumarin-3-carboxylate) 4(MeOH)2](PF6)×MeOH×H2O, 3×MeOH×H2O, was accomplished using a well documented carboxylate exchange reaction. All three complexes were thoroughly characterized using infrared and UV-Vis spectroscopies, elemental analysis and X-ray diffraction. Due to the extended π-systems present, two of the complexes, 2×3THF and 3×MeOH×H2O, display extensive π-stacking in two dimensions, with similar interactions notably absent in 1×4THF due to the perpendicular orientation of the naphthyl rings. Modest H-bonding is seen in complexes 1×4THF and 3×MeOH×H 2O. As these types of complexes are noted secondary building units (SBU's) in the construction of metal-organic frameworks (MOF's), the significance of these interactions in stabilizing even larger, supramolecular structures, are noted.
AB - The synthesis of three new valent-averaged tetracarboxylatodiruthenium (II,III) complexes, [Ru2(1-naphthylacetate)4(H 2O)2](PF6)×4THF, 1×4THF, [Ru 2(2-naphthoate)4(THF)2](PF6) ×3THF, 2×3THF, and [Ru2(coumarin-3-carboxylate) 4(MeOH)2](PF6)×MeOH×H2O, 3×MeOH×H2O, was accomplished using a well documented carboxylate exchange reaction. All three complexes were thoroughly characterized using infrared and UV-Vis spectroscopies, elemental analysis and X-ray diffraction. Due to the extended π-systems present, two of the complexes, 2×3THF and 3×MeOH×H2O, display extensive π-stacking in two dimensions, with similar interactions notably absent in 1×4THF due to the perpendicular orientation of the naphthyl rings. Modest H-bonding is seen in complexes 1×4THF and 3×MeOH×H 2O. As these types of complexes are noted secondary building units (SBU's) in the construction of metal-organic frameworks (MOF's), the significance of these interactions in stabilizing even larger, supramolecular structures, are noted.
KW - Axial adducts
KW - Diruthenium tetracarboxylates
KW - Hydrogen-bonding
KW - X-ray analysis
KW - π-Stacking
UR - http://www.scopus.com/inward/record.url?scp=84883708700&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2013.08.041
DO - 10.1016/j.molstruc.2013.08.041
M3 - Article
AN - SCOPUS:84883708700
SN - 0022-2860
VL - 1052
SP - 17
EP - 23
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
ER -