A Sterically Hindered N,N,O Tripod Ligand and Its Zinc Complex Chemistry

Trösch, Alexander; Vahrenkamp, Heinrich

doi:10.1021/ic001204j

Cited by 60 publications

(39 citation statements)

References 62 publications

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“…Resonances for the pyridine protons (red starred) of DPA were shifted more downfield than those for the naphthalimide moiety (blue starred) that implies coordination of Zn 2+ ions by the DPA moiety. Participation of deprotonated phenoxide form of the naphthol moiety in the postulated 1 − Zn 2+ complex could be supported by the reported structures of DPA-appended phenol based ligands [34,35]. Similar complexes with deprotoned Ph O − were also reported for representative Zn 2+ -selective probes based on DPA-armed fluorescein and hydroxyphenylbenzoxazole platform [36,37].…”

Section: Resultssupporting

confidence: 65%

Fluorescence signaling of Zn2+ levels in synthetic urine by dipicolylamine-armed hydroxynaphthalimide

Lee

Choi

et al. 2015

Sensors and Actuators B: Chemical

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Section: Resultssupporting

confidence: 65%

Fluorescence signaling of Zn2+ levels in synthetic urine by dipicolylamine-armed hydroxynaphthalimide

Lee

Choi

et al. 2015

Sensors and Actuators B: Chemical

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“…The main feature is the position of the highest energy ν(CO) band in the IR spectrum. It is observed in the 1640Ϫ1670 cm Ϫ1 range here as well as in N 3 O-tripod [27] and [12]ane-N 4 zinc complexes. [28] Its position is higher than that of the anionic 1-alkylated nucleobases, thereby excluding coordination via the oxygen atom, as this would lower the ν(CO) value.…”

Section: Resultsmentioning

confidence: 51%

Pyrazolylboratozinc Complexes of Nucleosides and Nucleoside Analogues

Badura

Vahrenkamp

2003

Eur J Inorg Chem

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Attachment of deprotonated nucleosides or of alkylated nucleobases, as their analogues, to zinc was achieved by condensation reactions between TpZn‐OH complexes and nucleobase derivatives. Pyrazolylboratozinc complexes with derivatives of uracil, thymine, guanine, xanthine and hypoxanthine were obtained and characterized by structure determination. In the uracil, thymine, guanine and hypoxanthine derivatives, zinc is bound to the nitrogen atom which bears the proton in the nucleoside. In the xanthine derivatives all three possible bonding modes are realized. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

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“…Mononuclear [13][14][15], binuclear [16][17][18][19][20][21][22][23][24][25][26][27], trinuclear [28][29], tetranuclear [30][31][32][33] and…”

Section: Introductionmentioning

confidence: 99%

Crystal structure and molecular stereochemistry of polymeric Cu2(DMP)4(DMSO) as a platform for phosphate diester binding

Rafizadeh¹,

Tayebee²,

Amani³

et al. 2006

Cryst. Res. Technol.

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Treatment of a solution of CuCl 2 in dimethyl phosphate (DMP) in an inert solvent under nitrogen atmosphere resulted in a light blue fluorescence powder. Slow evaporation of H 2 O-DMSO solution of this powder led to the formation of blue-sky crystals of a new polymeric Cu(II) complex, with a unit cell composed of Cu 2 (DMP) 4 (DMSO), (1). The crystal and molecular structure of the complex was established crystallographically. Compound (1) crystallizes in the monoclinic space group P2 1 /n with a = 12.8920(11)Å, b = 13.1966(11)Å, c = 14.7926(13)Å, α = 90°, β = 98.943(2)°, γ = 90° and Z = 4. A square pyramidal environment for the metal center is established by coordination of oxygen atoms of four bridging DMP ligands in the basal positions and a tri-centered oxygen atom of DMSO in the apical disposition. The sixth position is also affected by a weak interaction with the sulfur atom of DMSO. The phosphorous atom in the bridging DMP is arranged in a deformed tetrahedron with gg conformation for methyl esters with C 2v symmetry. Accordingly, the angles of methoxy substituents are unexpectedly smaller than the bridging oxygens, and synchronous z-in and z-out distortions are suggested for DMP anion. The oxygen atom of SOCuCu´ fragment derived from DMSO, functions as a tri-centered nuclei lie almost in a trigonal triangle environment. This study helps provide further insights into the binding nature of phosphate esters to the active sites of enzymes, which catalyze phosphoryl transfer reactions.

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A Sterically Hindered N,N,O Tripod Ligand and Its Zinc Complex Chemistry

Cited by 60 publications

References 62 publications

Fluorescence signaling of Zn2+ levels in synthetic urine by dipicolylamine-armed hydroxynaphthalimide

Fluorescence signaling of Zn2+ levels in synthetic urine by dipicolylamine-armed hydroxynaphthalimide

Pyrazolylboratozinc Complexes of Nucleosides and Nucleoside Analogues

Crystal structure and molecular stereochemistry of polymeric Cu2(DMP)4(DMSO) as a platform for phosphate diester binding

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