Authors :
Abdulrahman, N.A; Olowokere, 0.E; Adeyemi, K.A
Volume/Issue :
Volume 7 - 2022, Issue 3 - March
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3knjTkj
DOI :
https://doi.org/10.5281/zenodo.6505223
Abstract :
Metal-organic frameworks are a class of
porous polymeric material, consisting of metal ions
linked together by organic bridging ligands. They are
recently emerging on the interface between molecular
coordination chemistry and material science.The
[Ca(PYR)2], [Cu(ANTH)2] and [Zn(MAL)(PYR)]
complexes were synthesized by the solvent based and
solvent free methods of synthesis using a combination of
solvents.Physical and analytical data of the complexes
formed shows the [Ca(PYR)] complex to be whitish
powder with a melting point greater than 300oC while
the [Cu(ANTH)] complex synthesized by refluxing
method was observed to have a melting point >400.
FTIR analysis of the complexes shows thebidentate mode
of coordination of the [Zn(MAL)(PYR)] and the
[Cu(ANTH)], observed in the absorption bands at 469
and 501 cm-1
attributed to the ʋ(M-N) and ʋ(M-O) in the
[Zn(MAL)(PYR)], and at 495 and 521 cm-1
in the
[Cu(ANTH)] synthesized by the solvent based method
while the ʋ(M-N) and ʋ(M-O) bands for the [Cu(ANTH)]
prepared by solvent free method of synthesis was
observed at 484 and 515 cm-1
.
FTIR analysis results of the complexes synthesized
by the solvent free method showed close similarity with
the FTIR spectra of the complexes synthesized by the
solvent based method. The complexes were observed to
be stable up to a temperature of about 300oC.
Metal-organic frameworks are a class of
porous polymeric material, consisting of metal ions
linked together by organic bridging ligands. They are
recently emerging on the interface between molecular
coordination chemistry and material science.The
[Ca(PYR)2], [Cu(ANTH)2] and [Zn(MAL)(PYR)]
complexes were synthesized by the solvent based and
solvent free methods of synthesis using a combination of
solvents.Physical and analytical data of the complexes
formed shows the [Ca(PYR)] complex to be whitish
powder with a melting point greater than 300oC while
the [Cu(ANTH)] complex synthesized by refluxing
method was observed to have a melting point >400.
FTIR analysis of the complexes shows thebidentate mode
of coordination of the [Zn(MAL)(PYR)] and the
[Cu(ANTH)], observed in the absorption bands at 469
and 501 cm-1
attributed to the ʋ(M-N) and ʋ(M-O) in the
[Zn(MAL)(PYR)], and at 495 and 521 cm-1
in the
[Cu(ANTH)] synthesized by the solvent based method
while the ʋ(M-N) and ʋ(M-O) bands for the [Cu(ANTH)]
prepared by solvent free method of synthesis was
observed at 484 and 515 cm-1
.
FTIR analysis results of the complexes synthesized
by the solvent free method showed close similarity with
the FTIR spectra of the complexes synthesized by the
solvent based method. The complexes were observed to
be stable up to a temperature of about 300oC.
