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Journal : CHEMISTRY PROGRESS

SINTESIS TRIS-(4-THIOANISIL)OKTILSILAN MELALUI REAKSI KOPLING Lesbani, Aldes; Mohadi, Risfidian; ., Eliza; ., Elfita
CHEMISTRY PROGRESS Vol 6, No 2 (2013)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.6.2.2013.3493

Abstract

Telah dilakukan sintesis tris-(4-thioanisil)oktilsilan (1) melalui reaksi kopling antara oktilsilan dengan 4-iodidathioanisol. Reaksi dilakukan menggunakan katalis paladium dalam kondisi atmosfir inert menggunakan pelarut tetrahidrofuran. Senyawa (1) diperoleh dalam bentuk cairan tak berwarna dengan rendemen 20% mempunyai tujuh puncak 1H NMR, tigabelas puncak 13C NMR dan memiliki nilai m/z 510.Synthesis of tris-(4-thioanisyl)octylsilane (1) by coupling reaction between octylsilane and 4-iodo thioanisole has been done. Reaction was carried out using palladium as catalyst in inert condition and tetrahydrofuran as solvent. Compound (1) was obtained in colorless oil with the yield 20% has seven peaks of 1H NMR, thirteen peaks of 13C NMR and m/z 501.
TRIPEL ARILASI ORGANOSILIKA PRIMER DENGAN BEBERAPA ARIL IODIDA MENGGUNAKAN KATALIS PALADIUM Lesbani, Aldes; Mohadi, Risfidian
CHEMISTRY PROGRESS Vol 5, No 2 (2012)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.5.2.2012.768

Abstract

Telah dilakukan tripel arilasi senyawa organosilika primer dengan beberapa aril iodida menggunakan katalis paladium dengan teknik reaksi kopling. Reaksi dilakukan dalam kondisi atmosfir argon dengan 4-diazabicyclo[2,2,2]octane sebagai basa dalam pelarut tetrahidrofuran. Senyawa hasil sintesis yakni tris(5-metil-2-thiopen)fenil silan (1), tris(4-N,N-dimetil anilin) fenil silan (2), dan tris(2-thiopen)fenil silan (3) berhasil disintesis walaupun memilki persentase yield yang rendah yakni 27% untuk senyawa (1), 23% untuk senyawa (2) dan 17% untuk senyawa (3)The triple arylation between primary organosilica and several aryl iodides have been carried out using palladium catalyst by coupling reaction. Reaction was conducted in argon atmospheric with 4-diazabicyclo[2,2,2]octane as a base in tetrahydrofuran as a solvent. The products, which were tris(5-metil-2-thiopen)fenil silan (1), tris(4-N,N-dimetil anilin) fenil silan (2), and tris(2-thiopen)fenil silan (3), were successfully synthesized although with low yield. The yields of (1), (2), and (3) are 27%, 23%, and 17% respectively.
PREPARASI DAN KARAKTERISASI KALSIUM OKSIDA (CAO) DARI TULANG AYAM Mohadi, Risfidian; Lesbani, Aldes; Susie, Yosine
CHEMISTRY PROGRESS Vol 6, No 2 (2013)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/cp.6.2.2013.3498

Abstract

Telah dilakukan preparasi kalsium oksida dari tulang ayam dengan proses dekomposisi selama 3 jam pada variasi temperatur 400oC, 500oC, 700oC, 800oC, 900oC, 1000oC, 1100oC. Karakterisasi CaO hasil dekomposisi dengan XRD menunjukkan pola difraksi CaO pada temperatur dekomposisi 1100°C mendekati difraksi CaO standar (JCPDS) yang memiliki nilai 2?: 34,2º, 37,3º, 58,3º, 64,1º dan 67,3º dengan struktur kristalin. Pita serapan pada spectra FTIR Ca-O dari tulang ayam terlihat pada daerah 354,90 cm-1 yang menunjukkan adanya vibrasi Ca-O hasil dekomposisi, diperkuat dengan munculnya puncak pada gelombang 870 cm-1. Kemudian persentase CaO di dalam sampel dikonfirmasi dengan data EDX yang menunjukkan persentase sebesar 56,28%.Preparation of calcium oxide from chicken bones has been carried out systematically by decomposition for 3 hours at various temperatures i.e. 400, 500, 700, 800, 900, 1000 and 1100 oC. Formation of calcium oxide from decomposition process was characterized using X-Ray diffractometer. The results showed that XRD pattern of materials obtained from decomposition of chicken bones at 1100 oC which has a values of 2?: 32.2º, 37.5º, 58.3º, and 64.1º with a crystalline structure is similar with XRD pattern of calcium oxide standard from Joint Committee on Powder Diffraction Standards (JCPDS) . The absorption bands in the FTIR spectra of the Ca-O shown at 354.90 cm-1 region indicated the presence of Ca-O vibration, reinforced by the emergence of a peak at 870 cm-1. The percentage of 56.28% of CaO in the sample was confirmed by EDX data.
Co-Authors A. Agnes, A. Addy Rachmat, Addy Adi Saputra Ahmad Fatoni Andreas, Roy Andriani Azora Arianti Marpaung Arison Musri Aslihati Aslihati, Aslihati Aslihayati Aslihayati, Aslihayati Christina, Mikha Meilinda Dedi Rohendi Dian Monariqsa Dormian A N Haloho, Dormian A N Eiffel Ostan Jeski Gultom, Eiffel Ostan Jeski Elfita . Elfita Elfita Eliza . Eliza Eliza Ema Veronika Turnip Eriza Sativa, Eriza Fahma Riyanti, Fahma Fahmariyanti Fahmariyanti Fatmawati Fatmawati Ferlinahayati Ferlinahayati Fitriliana Fitriliana Hermansyah Hermansyah Hesti A. Harahap, Hesti Hesti Rizki Amalia Hilda Zulkifli Hiroshi Nishihara Hitoshi Kondo intan permata sari Irianty, Yunita Jasantri, Didi Kiki Anggraini, Kiki Leni Sinaga, Leni Lestari Simanjuntak Lora Vitanesa, Lora Lucyanti Lucyanti, Lucyanti Lusi Teresia, Lusi Marieska Verawaty Mariska Verawaty, Mariska MIKSUSANTI MIKSUSANTI Muhammad Imron, Muhammad MUHAMMAD SAID Najma Annuria Fithri, Najma Annuria Narsito Narsito Neza Rahayu Palapa, Neza Rahayu Niken Oktora Nurlisa Hidayati Oktriyanti, Melantina Melan Palita Tamba Poedji Loekitowati Hariani R.A. Mika Melviana, R.A. Mika Radja Nardo Purba, Radja Nardo Rahayu, Bakri Rio Ramadhan, Jeri Randi O. Saragih, Randi O. Risfidian Mohadi Risma Kurniawati M Samat Samat, Samat Setiawan Yusuf, Setiawan Setiawati Yusuf, Setiawati Setyowati, Menik Sherly Agustina, Sherly Sri Juari Santosa Sueb, Abi Suheryanto Suheryanto, Suheryanto Tarmizi Taher Welinda Me, Welinda Winda Fitriana, Winda Yeni Iswanti, Yeni Yoshinori Yamanoi Yosi Saria Yosine Susi Yosine Susie Zazili Hanafiah