Synthesis, characterization, photophysics, and anion binding properties of platinum(ii) acetylide complexes with urea group

Background: Azobenzol derivatives are important organic materials and show unique optical function. As a potential host, azobenzene has been broadly exploited in many areas because of its efficient inclusion ability and easy derivatization by functional groups. Objective: A series of twelve novel compounds have been synthesized and optimized based on azobenzol derivatives. Method: The binding properties were evaluated for biologically important anions (F-, Cl-, Br-, I-, AcO- and H2PO4-) by theoretical investigation, UV-vis, fluorescence experiments. Results: The compound containing three nitro groups displayed the strongest binding ability for AcO- ion among synthesized compounds. Theoretical investigation analysis revealed that the intramolecular hydrogen bond existed in the structure of the synthesized compounds. Conclusion: we have developed twelve compounds based on azobenzol derivatives. Compound 6 involving three nitro groups showed high sensitive and selective binding ability for acetate ion through multiple hydrogen bonds among anions tested including AcO-, F-, H2PO4-, Cl-, Br- and I- due to the conformational complementarity and higher basicity. Compound 6 also can be used as a colorimetric sensor for detecting acetate ion in environmental and pharmacy samples. The above results can provide a clue for the constructing of anion receptor based on azobenzol derivatives.

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Physical and chemical studies on bacterial superoxide dismutases. Purification and some anion binding properties of the iron-containing protein of Escherichia coli B.

Journal of Biological Chemistry ◽

10.1016/s0021-9258(17)33083-1 ◽

1976 ◽

Vol 251 (18) ◽

pp. 5472-5477 ◽

Cited By ~ 8

Author(s):

T O Slykhouse ◽

J A Fee

Keyword(s):

Escherichia Coli ◽

Anion Binding ◽

Superoxide Dismutases ◽

Binding Properties ◽

Chemical Studies ◽

Physical And Chemical ◽

Escherichia Coli B

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Synthesis of Carbohydrate Based Macrolactones and Their Applications as Receptors for Ion Recognition and Catalysis

Molecules ◽

10.3390/molecules26113394 ◽

2021 ◽

Vol 26 (11) ◽

pp. 3394

Author(s):

Surya B. Adhikari ◽

Anji Chen ◽

Guijun Wang

Keyword(s):

Nucleophilic Substitution ◽

Supramolecular Chemistry ◽

Copper Sulfate ◽

Substitution Reaction ◽

Biological Properties ◽

Anion Binding ◽

Nucleophilic Substitution Reaction ◽

Binding Properties ◽

Intramolecular Nucleophilic Substitution ◽

Leaving Groups

Glycomacrolactones exhibit many interesting biological properties, and they are also important in molecular recognitions and for supramolecular chemistry. Therefore, it is important to be able to access glycomacrocycles with different sizes and functionality. A new series of carbohydrate-based macrocycles containing triazole and lactone moieties have been designed and synthesized. The synthesis features an intramolecular nucleophilic substitution reaction for the macrocyclization step. In this article, the effect of some common sulfonate leaving groups is evaluated for macrolactonization. Using tosylate gave good selectivity for monolactonization products with good yields. Fourteen different macrocycles have been synthesized and characterized, of which eleven macrocycles are from cyclization of the C1 to C6 positions of N-acetyl D-glucosamine derivatives and three others from C2 to C6 cyclization of functionalized D-glucosamine derivatives. These novel macrolactones have unique structures and demonstrate interesting anion binding properties, especially for chloride. The macrocycles containing two triazoles form complexes with copper sulfate, and they are effective ligands for copper sulfate mediated azide-alkyne cycloaddition reactions (CuAAC). In addition, several macrocycles show some selectivity for different alkynes.

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