A new series of lanthanum dialkyldithiocarbamate complexes with 1,10-phenantroline were successfully synthesized using in situ methods. These complexes were characterized using elemental analysis, infrared, thermogravimetric analysis and conductivity. Microelemental analysis data were in agreement with the general formula La(S2CNR’R”)3phen (R’ = ethyl, methyl; R” = butyl, heptyl, isopropyl, isobutyl, benzyl and cyclohexyl; phen = 1,10-phenantroline). Infrared spectra of complexes showed the thioureide n(C-N) bands were in the region of 1450 - 1482 cm-1. The single n(C-S) bands appeared in the region of 959 – 997 cm-1 and n(C-H) bands in the region of 2918-2955 cm-1. The crystal structure of tris(N,N-ethylbenzyldithiocarbamate)(1,10-phenantroline)lantanum(III) adopts an orthorombic system (space group Pccn) with a distorted dodecahedron geometry with a = 19.865(5) Å , b = 42.803(10) Å, c = 10.657(3) Å, a = b = g = 90o and Z = 9. Three dithiocarbamates and one phenanthroline ligands were coordinated to the central La atom in bidentate manner.
A new series of gadolinium complexes with mixed ligands, dialkyl dithiocarbamate and 1,10-Phenantroline were successfully synthesized using “in situ” methods. Microelemental analysis data of complexes are in agreement with the general formula Gd[S2CNR’R”]3Phen (R’ = ethyl, methyl; R” = butyl, heptyl, isopropyl, isobutyl, benzyl and cyclohexyl; Phen = 1,10-phenantroline). These complexes have been characterized using elemental analysis, infrared, thermogravimetric analysis, conductivity and magnetic measurements. Infrared spectra of complexes showed the thioureide n(C-N) bands were in the region of 1450 - 1490 cm-1. The single n(C-S) bands appeared in the region of 959 – 1003 cm-1 and n(C-H) bands in the region of 2853-2931 cm-1. The crystal structure of tris(N,N-methylbenzyldithiocarbamate)(1,10-phenantroline) gadolinium(III) adopts a triclinic system (space group Pī) with a distorted dodecahedron geometry with a = 11.04(6) Å , b = 12.65(7) Å, c = 17.13(10) Å, a =73.86o(8) b =74.54o(8) g = 72.34o(8) and Z = 2. Three dithiocarbamates and one phenanthroline ligands were coordinated to the central Gd atom in bidentate manner.
Tujuh kompleks praseodimium (Pr) ditiokarbamat 1,10-fenantrolin baru telah berjaya disintesis menggunakan kaedah in-situ hasil daripada tindak balas lapan jenis amina dengan garam praseodimium(III) bersama dengan karbon disulfida. Kaedah metatesis dan kondensasi merupakan kaedah yang paling berjaya telah menghasilkan praseodimium ditiokarbamat 1,10 fenantrolin dengan formula umum Pr[S2CNR1R2]3phen (R1 = etil dan metil; R2 = butil, heptil, isopropil, isobutil, benzil dan sikloheksil; phen= 1,10-fenantrolin). Kesemua kompleks telah dicirikan menggunakan kaedah analisis unsur, inframerah, termogravimetri dan konduktiviti. Analisis unsur telah menunjukkan kesemua kompleks bersetuju dengan formula umum yang dicadangkan. Spektrum inframerah (FTIR) menunjukkan jalur tioureda v(C-N) terletak dalam kawasan julat 1454 – 1484 cm-1 dan jalur ν(C-H) pula terletak dalam kawasan 2853-2973 cm-1. Jalur v(C-S) yang wujud secara tunggal dalam kawasan 959 – 999 cm-1 mengesahkan ia berikatan secara bidentat. Data spektroskopi NMR 13C moeti NCS2 untuk kesemua kompleks terletak dalam julat 192 – 212 ppm. Struktur hablur tunggal Pr[S2CN(CH3)(C7H7)]3phen mempunyai sistem hablur triklinik (kumpulan ruang Pī) dan geometri dodekahedron dengan a = 10.7165(16) Å , b = 12.2897(19) Å, c = 16.586(2) Å, α = 73.887(2)o; β = 74.879(2)o dan γ = 71.837(2)o and Z = 2. Tiga ditiokarbamat dan satu ligan fenantrolin telah berkoordinat kepada atom Pr di pusat secara bidentat.