Formation reactions and photophysical parameters of highly luminescent lanthanoids(III) complexes with 4-hydroxypyridine-2,6-dicarboxylic acid
نویسندگان
چکیده
منابع مشابه
Structural and photophysical properties of Ln complexes with 2,2 -bipyridine-6,6 -dicarboxylic acid: surprising formation of a H-bonded network of bimetallic entities†
The ligand H2L = 2,2 -bipyridine-6,6 -dicarboxylic acid reacts with Ln(NO3)3 xH2O (x = 6, Ln = Eu, Tb; x = 5, Ln = Gd) in MeOH/Et3N to give complexes with 1 :2 and 2 :3 metal : ligand stoichiometry, (Et3NH)[LnL2] and [Ln2L3(H2O)3] xH2O (x = 1, Ln = Eu, Tb; x = 0, Ln = Gd) which have been isolated and characterised. A sizeable quantum yield is obtained for the 1 :2 Eu :Ligand complex in aqueous ...
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A new fluorescent terpyridyl-diphenylacetylene hybrid fluorophore 4'-[4-{(4-methoxyphenyl)ethynyl}phenyl]-2,2':6',2''-terpyridine, L, was synthesized via Sonogashira cross-coupling of 4'-(4-bromophenyl)-2,2':6',2''-terpyridine and 4-ethynylanisole in the presence of Pd(PPh3)4/CuI as a catalyst. The solid state structure of L shows a trans arrangement of pyridine nitrogen atoms along the interan...
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برهمکنش dnaتیموس گاوی طبیعی (ct-dna) با اتیلن دی آمین تترااستات (edta)در بافرtris-hcl با 8/7 ph ( دراین ph،edta به نمک دی سدیم تبدیل می شود) وسسامول در بافر tris-hcl با4/7 ph مورد بررسی قرار گرفته است. edta و سسامول استفاده فراوانی در تکنولوژی غذایی و صنعت شیمیایی دارند. مدل اتصال dna مربوط بهedta بوسیله اسپکتروفتومتری جذب، دورنگ نمایی حلقوی(cd)، ویسکومتری وژل الکتروفورز بررسی شده است. طیفuv ...
15 صفحه اولLuminescent rhenium(I) tricarbonyl complexes with pyrazolylamidino ligands: photophysical, electrochemical, and computational studies.
New pyrazolylamidino complexes fac-[ReCl(CO)3(NH[double bond, length as m-dash]C(Me)pz*-κ(2)N,N)] (pz*H = pyrazole, pzH; 3,5-dimethylpyrazole, dmpzH; indazole, indzH) and fac-[ReBr(CO)3(NH[double bond, length as m-dash]C(Ph)pz*-κ(2)N,N)] are synthesized via base-catalyzed coupling of the appropriate nitrile with pyrazole, or via metathesis by halide abstraction with AgBF4 from a bromido pyrazol...
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Here we report the straightforward synthesis of the ligands L(tz), L(tzC8), L(tzPEG), L(tzAnis) and L(≡Anis) presenting the same pyridine-bistetrazolate (pytz, L) chelating scaffold but different substituents on the para position of the pyridine ring. Its substitution allows the tuning of the solubility of the LnIII complexes [Ln(Li)3]3(-). These new ligands form homoleptic nona-coordinated LnI...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 2003
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.52.713