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Irma Mulyani
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Kompleks Besi(II) Dengan Ligan 3-BPP : Review Fitriani Fitriani; Djulia Onggo; Irma Mulyani
Jurnal Kartika Kimia Vol 4 No 1 (2021): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v4i1.74

Abstract

The change of two different spin electronic states under the influence of temperature, pressure and light irradiation is known as the Spin Transition or Spin Crossover (SCO) phenomenon. Spin transition exists on octahedral complexes with an intermediate ligand field, one of the ligands is 2,6-bis (pyrazol-3-yl)pyridine or 3-bpp. Spin transition complexes were intensively investigated because they are highly potential candidates for electronic materials, such as sensors, molecular switches and information storages. The iron(II) complex with 3-bpp ligand has shown SCO characteristics including different transition pattern and transition temperature which were influenced by type of the counter anions. The iron(II) complexes with different types of counter anions have exhibited SCO phenomenon, due to the effect of temperature with abrupt transition. However, the presence of hydrate water in the iron(II) complex results in the higher temperature transition. In addition of that, the transition pattern has changed from the abrupt transition into the gradual transition types. Several studies of SCO properties of the complex Fe(II)-3-bpp reported that the transition type and the temperature transition were influenced by the type of counter anion and the amount of hydrate molecules. With various transition patterns and transition temperatures, the potential of Fe(II)-bpp complexes as SCO materials is more interesting to explored. Keywords: Iron(II) Complex, 3-bpp Ligand, Spin Crossover
SINTESIS KOMPLEKS NIKEL(II) DENGAN LIGAN TURUNAN SALISILIDEN ANILIN SEBAGAI SENYAWA POTENSIAL OLED Irma Nuril Maryam; Deana Wahyuningrum; Irma Mulyani
Jurnal TEDC Vol 10 No 1 (2016): Jurnal TEDC
Publisher : UPPM Politeknik TEDC Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.841 KB)

Abstract

Senyawa kompleks Nikel(II) dengan ligan turunan salisiliden anilin berhasil disintesis dengan metode MAOS(Microwave Assisted Organic Synthesis) dan di pelajari aktivitasnya sebagai senyawa potensial OLED(Organic Light-Emitting Diode). Senyawa-senyawa imina (E)-2-((4-chlorophenylimino)methyl)phenol (L1) dan(E)-2-((p-tolylimino)methyl)phenol (L2) disintesis dengan pelarut etil l-laktat:air (9:1), rendemen masing-masing97% (Tl: 98-100°C) dan 96% (92-94°C). Berdasarkan analisis spektrum IR, 1H NMR, 13C NMR, dan MSmenunjukkan senyawa L1 dan L2 sudah terbentuk. Kompleks Nikel (II) hasil sintesis berwarna hijau mudauntuk K1 (terdekomposisi pada 190°C) dan hijau tua untuk K2 (terdekomposisi pada 170°C). Analisis IR danUV/Vis pada K1 dan K2 menunjukkan ikatan C-O-M telah terbentuk. Berdasarkan spektrum emisi antara K1dan K2, menunjukkan K2 merupakan senyawa yang lebih berpotensi sebagai OLED daripada K1.Kata kunci : Nikel(II), salisiliden anilin, OLED, MAOS
Co-Authors Deana Wahyuningrum Djulia Onggo Fitriani Fitriani Irma Nuril Maryam