Modulating the efficiency of Ru(II) luminescence via ion binding-induced conformational restriction of bipyridyl ligands.
نویسندگان
چکیده
Conformational restriction imposed upon Ru(bpy)32+ crown ether complexes by metal ion binding leads to enhanced luminescence.
منابع مشابه
Rapid energy transfer in bichromophoric tris-bipyridyl/cyclometallated ruthenium(II) complexes.
The synthesis, characterization, and photophysical properties of the N6-N5C bichromophoric [(bpy)2Ru(I)Ru(ttpy)][PF6]3 (bpy is 2,2'-bipyridine and ttpy is 4'-p-tolyl-2,2':6',2''-terpyridine) and [(bpy)2Ru(II)Ru(ttpy)][PF6]3 (I and II are bpy-dipyridylbenzene ditopic ligands bridged by an ethynyl and phenyl unit, respectively) complexes are reported together with the model mononuclear complexes ...
متن کاملConformational control of excited-state dynamics in highly distorted Ru(II) polypyridyl complexes.
Tris(bipyridyl)ruthenium(II) complexes modified such that one of the bipyridines is appended with a crown ether display luminescence that is responsive to complexation with metal ions. The parent species, Ru(bpy)3(2+), is moderately luminescent, with an emission lifetime of about 1 micros in fluid solution at room temperature. The modified complexes are much less emissive, with lifetimes near 1...
متن کاملLuminescent ruthenium(II) bipyridine-calix[4]arene complexes as receptors for lanthanide cations.
The synthesis and photophysical properties of novel luminescent ruthenium(II) bipyridyl complexes containing one, two, or six lower rim acid-amide-modified calix[4]arene moieties covalently linked to the bipyridine groups are reported which are designed to coordinate and sense luminescent lanthanide ions. All the Ru-calixarene complexes synthesized in this work are able to coordinate Nd(3+), Eu...
متن کاملCucurbit[10]uril binding of dinuclear platinum(II) and ruthenium(II) complexes: association/dissociation rates from seconds to hours.
A simpler method for the purification of cucurbit[10]uril (Q[10]) from the Q[10].Q[5] inclusion complex is reported. 1,12-Diaminododecane was used to displace Q[5], as opposed to the synthetic melamine derivative currently used. The binding of trans-[{PtCl(NH(3))(2)}(2)(micro-NH(2)(CH(2))(8)NH(2))](2+) (CT008) and [{Ru(phen)(2)}(2)(micro-bb(5))](4+) {phen = 1,10-phenanthroline; bb(5) = 1,5-bis[...
متن کاملSynthesis, structural, photophysical and electrochemical studies of various d-metal complexes of btp [2,6-bis(1,2,3-triazol-4-yl)pyridine] ligands that give rise to the formation of metallo-supramolecular gels.
2,6-Bis(1,2,3-triazol-4-yl)pyridine (btp) is a terdentate binding motif that is synthesised modularly via the CuAAC reaction. Herein, we present the synthesis of ligands 1 and 2 and the investigation of the coordination chemistry, photophysical behaviour and electrochemistry of complexes of these with a number of d-metal ions (e.g. Ru(II), Ir(III), Ni(II) and Pt(II)). The X-ray crystal structur...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Chemical communications
دوره 3 شماره
صفحات -
تاریخ انتشار 2003