title: Solvent effect on neutral chiral supramolecular assemblies and their distinct receptor behaviour towards anions.
abstract: We describe the distinct receptor behaviour of a neutral chiral Cu(ii) complex in dimethylsulfoxide or methanol towards anions, such as F(-), Cl(-), Br(-), I(-) or OAc(-), where F(-) and OAc(-) show the most colorimetric change, through various spectroscopic techniques. Further insights into this at the molecular level come from the single crystal X-ray structures of both dimethylsulfoxide and methanol solvates which show a solvent effect on their supramolecular network formation. Both chromogenic and fluorogenic sensing of the anions indicate a 2 : 1 receptor-anion formation via anion-π as well as hydrogen bonding interactions.
authors.affiliation: Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Sector 81, Manauli PO, S.A.S. Nagar, Mohali, Punjab 140306, India. sanjaymandal@iisermohali.ac.in.
authors.forename: Navnita
authors.initials: N
authors.lastname: Kumar
authors.forename: Sadhika
authors.initials: S
authors.lastname: Khullar
authors.forename: Sanjay K
authors.initials: SK
authors.lastname: Mandal
mesh_terms: D000838:Anions / Q000737:chemistry*; D003124:Colorimetry; D056831:Coordination Complexes / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004121:Dimethyl Sulfoxide / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000838:Anions; D056831:Coordination Complexes; D012997:Solvents; D003300:Copper; D000432:Methanol; D004121:Dimethyl Sulfoxide