SYNTHESIS AND CRYSTAL STRUCTURE OF MN(II) AND HG(II) COMPOUNDS AND SOLUTION STUDIES OF MN(II), ZN(II), CD(II) AND HG(II) COMPOUNDS BASED ON PIPERAZINEDIIUM PYRIDINE-2,3-DICARBOXYLATE

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AGHABOZORG H.; DANESHVAR S.; MOTIEIAN E.; MANTEGHI F.; KHADIVI R.; GHADERMAZI M.; SHOKR ELAHI A.; GHAEDI M.; DERKI S.; SHAMSIPOUR M.

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Journal: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS) Year:2009 | Volume:6 | Issue:3 Page(s): 620-637

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Title

SYNTHESIS AND CRYSTAL STRUCTURE OF MN(II) AND HG(II) COMPOUNDS AND SOLUTION STUDIES OF MN(II), ZN(II), CD(II) AND HG(II) COMPOUNDS BASED ON PIPERAZINEDIIUM PYRIDINE-2,3-DICARBOXYLATE

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Keywords

METAL COMPLEXES

CRYSTAL STRUCTURE

SOLUTION STUDY

SUPRAMOLECULAR CHEMISTRY

WATER CLUSTER

Abstract

Novel metal organic frameworks including {(pipzH2)[Mn(py-2,3-dc)2]·7.75H2O}n, 1, {(pipzH2)[Zn(py-2,3-dc)2]·4H2O}n, 2, [Cd(py-2,3-dc)(H2O)3]n, 3 and {(pipzH2)[Hg4Cl10]}n, 4, in which pipz is piperazine and py-2,3-dcH2 is pyridine-2,3-dicarboxylic acid were synthesized applying a proton transfer ion pair i.e. (pipzH2)(py-2,3-dcH)2 and corresponding metallic salts and studied by IR, 1H NMR, 13C NMR spectroscopy and single crystal X-ray diffractometry. The space group of compounds 1 and 4 are P21/c and C2/c of monoclinic system, respectively. The crystal dimensions are a=20.108(2) Å, b=19.910(2) Å, c=12.997(1) Å, b= 94.354(2)° for 1 and a=15.940(1) Å, b=11.2690(9) Å, c=11.1307(9) Å, b=90.685(2)o for 4. The CRYSTAL STRUCTUREs of 2 and 3 have been reported previously. However, their solution studies are discussed here. The compounds had all polymeric structures. Although ZnII, CdII and HgII were elements of the same group, their behavior against the ion pair was essentially different. Various supramolecular interactions mainly hydrogen bonds of the type O-H···O, N-H···O, C-H···O, N-H···Cl and C-H···Cl were observed in the structures. There was an unusual and huge WATER CLUSTER in the structure of compound 1. The solution states of compounds 1-4 were studied and reported. The protonation constants of pipz and py-2,3-dc, the py-2,3-dc/pipz proton transfer equilibrium constants and stoichiometry and stability of the system with Mn2+, Zn2+, Cd2+ and Hg2+ ions in aqueous solution were investigated by potentiometric pH titrations.

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APA: Copy

AGHABOZORG, H., DANESHVAR, S., MOTIEIAN, E., MANTEGHI, F., KHADIVI, R., GHADERMAZI, M., SHOKR ELAHI, A., GHAEDI, M., DERKI, S., & SHAMSIPOUR, M.. (2009). SYNTHESIS AND CRYSTAL STRUCTURE OF MN(II) AND HG(II) COMPOUNDS AND SOLUTION STUDIES OF MN(II), ZN(II), CD(II) AND HG(II) COMPOUNDS BASED ON PIPERAZINEDIIUM PYRIDINE-2,3-DICARBOXYLATE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 6(3), 620-637. SID. https://sid.ir/paper/282326/en

Vancouver: Copy

AGHABOZORG H., DANESHVAR S., MOTIEIAN E., MANTEGHI F., KHADIVI R., GHADERMAZI M., SHOKR ELAHI A., GHAEDI M., DERKI S., SHAMSIPOUR M.. SYNTHESIS AND CRYSTAL STRUCTURE OF MN(II) AND HG(II) COMPOUNDS AND SOLUTION STUDIES OF MN(II), ZN(II), CD(II) AND HG(II) COMPOUNDS BASED ON PIPERAZINEDIIUM PYRIDINE-2,3-DICARBOXYLATE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)[Internet]. 2009;6(3):620-637. Available from: https://sid.ir/paper/282326/en

IEEE: Copy

H. AGHABOZORG, S. DANESHVAR, E. MOTIEIAN, F. MANTEGHI, R. KHADIVI, M. GHADERMAZI, A. SHOKR ELAHI, M. GHAEDI, S. DERKI, and M. SHAMSIPOUR, “SYNTHESIS AND CRYSTAL STRUCTURE OF MN(II) AND HG(II) COMPOUNDS AND SOLUTION STUDIES OF MN(II), ZN(II), CD(II) AND HG(II) COMPOUNDS BASED ON PIPERAZINEDIIUM PYRIDINE-2,3-DICARBOXYLATE,” JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), vol. 6, no. 3, pp. 620–637, 2009, [Online]. Available: https://sid.ir/paper/282326/en

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