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Chemistry Education 2018
Journal of Organic & Inorganic Chemistry
ISSN: 2472-1123
Page 39
August 27-28, 2018
Zurich, Switzerland
8
th
Edition of International Conference on
Chemistry Education
and Research
T
he blue powdered complex of hydrated tris-phenanthroline(II)
trifluoroacetate has been isolated by interaction of the
corresponding nitrate salt in aqueous solution and slightly
excess of bipyridine in ethanol on the addition of an excess of
saturated potassium triflate solution and reducing the solvent.
The thermogravimetric analysis/differential thermal analysis
(TGA/DTA) confirmed the loss of 4.983% mass of the complex
corresponding to 2.4 H
2
O (0.6% error), while atomic absorption
spectroscopy (AAS) measurement showed the content of metal
to be 6.24% corresponding to the theoretical value of 7.28%
(14.28% error) in [Cu(
phen
)
3
](CF
3
COO)
2
.2.4H
2
O. Moreover, the
analysis of conductance producing the charge ratio of cation
by anion to be 2:1, clearly confirms the formula. The magnetic
moment, eff, of this complex which was to be 1.95-1.99 BM,
indicates that the complex is paramagnetic corresponding to
an unpaired electron. UV-Vis spectrum of the complex reveals
the only one absorption observed at about 677 nm (14770 cm
-
1
), being associated with the spin allowed transition,
2
E
g
→
2
T
2g
.
The extinction coefficient of 57.8 Lmol
-1
cm
-1
indicates the
adoption of octahedral environment in this complex. The infrared
spectrum shows absorptions of ligand group which is influenced
by the metal-ligand interaction in this complex. The powder XRD
analysis of this complex was refined by Rietica-Le Bail method
and found to be fit as triclinic crystal system and space group of
PI, with parameters of a=10.8985 Å, b=41.0532 Å, c=16.1082
Å,
α
=98.2720°, β=91.9544°,
γ
=82.4071°, V=7068.8295Å3, Z=1,
Rp
=1.83 and
Rwp
=5.70
Rexp
=0.37. The goodness of the fitting,
GOF=231.4, was also reflected by the derived Bragg R-Factor of
0.03.
Biography
Kristian Handoyo Sugiyarto gained his Drs. degree from Yogyakarta State
University (UNY), Indonesia in 1978; while appointed to the Academic Staff
of UNY (1979), he undertook MSc program in 1984-1987, and then contin-
ued to the PhD program in 1989-1992, both at the Department of Inorganic
Chemistry, the School of Chemistry, UNSW, Australia, under the supervision
of Prof. H A Goodwin. He then undertook a three-six-month Postdoctoral
Research, again with Prof. H A Goodwin, 1995-1997. More than 20 interna-
tional publications dealing with spin-crossover in iron(II) and some educa-
tion were published in various international journal Scopus indexed, while
more than 15 articles published in local-national journals. He also under-
took another six-month research in structural study by EXAFS analysis with
Prof. Makoto Kurihara at Shizuoka University and with Prof. Saito A at Tokyo
Gakugei University, 2002-2003. He also undertook a four-month Academic
Recharging Program for doing palladium complex with Prof. Stephen B Col-
bran at the School of Chemistry, UNSW, Australia, 2009-2010. He has also
presented in several international conference in Paris, Rome, UPSI Malaysia,
Bangkok Thailand.
sugiyarto@uny.ac.idStructural study on powdered complex of [Cu(
phen
)
3
]
(CF
3
COO)
2
.2.4H
2
O
Kristian Handoyo Sugiyarto, Hestina W
and
Cahyorini K
Yogyakarta State University, Indonesia
Kristian Handoyo Sugiyarto et al., J Org Inorg Chem 2018, Volume 4
DOI: 10.21767/2472-1123-C5-014