The title compound was prepared by modified procedure and characterized by means of IR, [1H] and ... more The title compound was prepared by modified procedure and characterized by means of IR, [1H] and [13C] NMR spectroscopy. The structure was also determined by a single-crystal X-ray diffraction (XRD). 3-Ferrocenylpropanoic acid crystallizes as orange prisms in the triclinic space group P <img src="/fulltext-image.asp?format=htmlnonpaginated&src=T217121G15254134_html\11224_2004_Article_464099_TeX2GIFIE1.gif" border="0" alt=" $$\overline 1$$ " /> with a = 7.645(1) Å, b = 7.953(1) Å, c
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
The inhibition of Al-3Mg alloy corrosion in 0.5 M and 1 M HCl by newly prepared compounds namely:... more The inhibition of Al-3Mg alloy corrosion in 0.5 M and 1 M HCl by newly prepared compounds namely: 4-(methoxymethyl)-1,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (compound A) and 4-amino-3,5-bis[6-(methoxymethyl)-3,4-dimethyl-2-oxo-1,2-dihydropyridine-1-yl]-1,2,4-triazole-2(H) (compound B) has been studied by weight loss and potentiodynamic polarization measurements. Tafel curves showed that both compounds investigated are excellent mixed type inhibitor for Al-3Mg alloy in acidic solutions. The adsorption of these compounds obeyed the Langmuir adsorption isotherm. FTIR analysis was used to obtain information on bonding mechanism between the metallic surface and the inhibitors. The triazole derivative (compound B) is better inhibitor than pyridine derivative (compound A).
Acta Crystallographica Section C Crystal Structure Communications, 2003
In the title compound, [Fe(C(7)H(7)O(2))(2)], the cyclopentadienyl rings and the two attached met... more In the title compound, [Fe(C(7)H(7)O(2))(2)], the cyclopentadienyl rings and the two attached methoxycarbonyl groups, in an anti arrangement, form an extended pi-conjugated system. The Fe-C distances range from 2.035 (3) to 2.061 (3) A and the average value of the C-C bond lengths in the two cyclopentadienyl rings is 1.419 (5) A. The rings are almost parallel to one another [1.0 (2) degrees ] and are mutually twisted from an eclipsed conformation by only 1.8 (3) degrees (average value). The methoxycarbonyl groups are twisted out of the plane of the cyclopentadienyl rings by 6.5 (4) and 15.7 (4) degrees, respectively. The molecules are joined into dimers by intermolecular C-H.O hydrogen bonds that form ten-membered rings. The same types of hydrogen bonds form eight-membered rings and infinite chains along the b axis.
Acta Crystallographica Section C Crystal Structure Communications, 2003
Crystal structure analysis of the title compound, C(13)H(12)ClNO, reveals three crystallographica... more Crystal structure analysis of the title compound, C(13)H(12)ClNO, reveals three crystallographically independent molecules in the asymmetric unit. The main conformational difference between these molecules is the orientation of the phenyl rings with respect to the pyrrole rings. The coplanar arrangement of the aldehyde groups attached to the pyrrole rings influences the pyrrole-ring geometry. The C2-C3 and N1-C5 bonds are noticeably longer than the C4-C5 and N1-C2 bonds. Two independent molecules of the title compound form dimers via intermolecular C-H.O hydrogen bonds [D.A = 3.400 (3) A and D-H.A = 157 degrees ]. The perpendicular orientation of the phenyl and pyrrole rings of one independent molecule and its symmetry-related molecule allows C-H.pi interactions, with an H.centroid distance of 2.85 A and a C-H.pi angle of 155 degrees. The distances between the H atom and the pyrrole-ring atoms indicate that the C-H bond points towards one of the bonds in the pyrrole ring.
The title compound was prepared by modified procedure and characterized by means of IR, [1H] and ... more The title compound was prepared by modified procedure and characterized by means of IR, [1H] and [13C] NMR spectroscopy. The structure was also determined by a single-crystal X-ray diffraction (XRD). 3-Ferrocenylpropanoic acid crystallizes as orange prisms in the triclinic space group P <img src="/fulltext-image.asp?format=htmlnonpaginated&src=T217121G15254134_html\11224_2004_Article_464099_TeX2GIFIE1.gif" border="0" alt=" $$\overline 1$$ " /> with a = 7.645(1) Å, b = 7.953(1) Å, c
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
... 14, No. 6, December 2003 ( C 2003) Synthesis and Structures of the Novel Pyridoxal Oxime Deri... more ... 14, No. 6, December 2003 ( C 2003) Synthesis and Structures of the Novel Pyridoxal Oxime Derivatives Marijana Jukic,1,5 Antonija Hergold-Brundic,2 Mario Cetina,3 Ante Nagl,3 and Jasna Vorkapic-Furac4 Received July 25, 2002; accepted December 11, 2002 ...
Sažetak: In this study, AgBr nanoparticles were prepared by controlled single jet method in the p... more Sažetak: In this study, AgBr nanoparticles were prepared by controlled single jet method in the presence of gelatine and polyvinylpyrrolidone (PVP). In order to obtain better insight about the effect of PVP and its compatibility with gelatine on the formation of AgBr ...
The title compound was prepared by modified procedure and characterized by means of IR, [1H] and ... more The title compound was prepared by modified procedure and characterized by means of IR, [1H] and [13C] NMR spectroscopy. The structure was also determined by a single-crystal X-ray diffraction (XRD). 3-Ferrocenylpropanoic acid crystallizes as orange prisms in the triclinic space group P <img src="/fulltext-image.asp?format=htmlnonpaginated&src=T217121G15254134_html\11224_2004_Article_464099_TeX2GIFIE1.gif" border="0" alt=" $$\overline 1$$ " /> with a = 7.645(1) Å, b = 7.953(1) Å, c
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
The inhibition of Al-3Mg alloy corrosion in 0.5 M and 1 M HCl by newly prepared compounds namely:... more The inhibition of Al-3Mg alloy corrosion in 0.5 M and 1 M HCl by newly prepared compounds namely: 4-(methoxymethyl)-1,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (compound A) and 4-amino-3,5-bis[6-(methoxymethyl)-3,4-dimethyl-2-oxo-1,2-dihydropyridine-1-yl]-1,2,4-triazole-2(H) (compound B) has been studied by weight loss and potentiodynamic polarization measurements. Tafel curves showed that both compounds investigated are excellent mixed type inhibitor for Al-3Mg alloy in acidic solutions. The adsorption of these compounds obeyed the Langmuir adsorption isotherm. FTIR analysis was used to obtain information on bonding mechanism between the metallic surface and the inhibitors. The triazole derivative (compound B) is better inhibitor than pyridine derivative (compound A).
Acta Crystallographica Section C Crystal Structure Communications, 2003
In the title compound, [Fe(C(7)H(7)O(2))(2)], the cyclopentadienyl rings and the two attached met... more In the title compound, [Fe(C(7)H(7)O(2))(2)], the cyclopentadienyl rings and the two attached methoxycarbonyl groups, in an anti arrangement, form an extended pi-conjugated system. The Fe-C distances range from 2.035 (3) to 2.061 (3) A and the average value of the C-C bond lengths in the two cyclopentadienyl rings is 1.419 (5) A. The rings are almost parallel to one another [1.0 (2) degrees ] and are mutually twisted from an eclipsed conformation by only 1.8 (3) degrees (average value). The methoxycarbonyl groups are twisted out of the plane of the cyclopentadienyl rings by 6.5 (4) and 15.7 (4) degrees, respectively. The molecules are joined into dimers by intermolecular C-H.O hydrogen bonds that form ten-membered rings. The same types of hydrogen bonds form eight-membered rings and infinite chains along the b axis.
Acta Crystallographica Section C Crystal Structure Communications, 2003
Crystal structure analysis of the title compound, C(13)H(12)ClNO, reveals three crystallographica... more Crystal structure analysis of the title compound, C(13)H(12)ClNO, reveals three crystallographically independent molecules in the asymmetric unit. The main conformational difference between these molecules is the orientation of the phenyl rings with respect to the pyrrole rings. The coplanar arrangement of the aldehyde groups attached to the pyrrole rings influences the pyrrole-ring geometry. The C2-C3 and N1-C5 bonds are noticeably longer than the C4-C5 and N1-C2 bonds. Two independent molecules of the title compound form dimers via intermolecular C-H.O hydrogen bonds [D.A = 3.400 (3) A and D-H.A = 157 degrees ]. The perpendicular orientation of the phenyl and pyrrole rings of one independent molecule and its symmetry-related molecule allows C-H.pi interactions, with an H.centroid distance of 2.85 A and a C-H.pi angle of 155 degrees. The distances between the H atom and the pyrrole-ring atoms indicate that the C-H bond points towards one of the bonds in the pyrrole ring.
The title compound was prepared by modified procedure and characterized by means of IR, [1H] and ... more The title compound was prepared by modified procedure and characterized by means of IR, [1H] and [13C] NMR spectroscopy. The structure was also determined by a single-crystal X-ray diffraction (XRD). 3-Ferrocenylpropanoic acid crystallizes as orange prisms in the triclinic space group P <img src="/fulltext-image.asp?format=htmlnonpaginated&src=T217121G15254134_html\11224_2004_Article_464099_TeX2GIFIE1.gif" border="0" alt=" $$\overline 1$$ " /> with a = 7.645(1) Å, b = 7.953(1) Å, c
The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the ... more The Fischer indolization afforded the title compound C31H25N3·C2H5OH as the major product in the reaction of 1,5-di(p-tolyl)pentane-1,3,5-trione with phenylhydrazine hydrochloride in ethanol. The structure assignment of this novel pyrazolylindole derivative is based on the data of elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. The structure is also confirmed by means of X-ray crystallography. The molecule crystallizes in the orthorhombic space group P 212121, with a = 10.298(2), b = 14.984(5), c = 18.133(3) A, Z = 8, V = 2798.0(12) A3. The absolute structure has been determined. The ethanol molecule forms intermolecular hydrogen bonds with the pyrazole and indole nitrogen atoms.
... 14, No. 6, December 2003 ( C 2003) Synthesis and Structures of the Novel Pyridoxal Oxime Deri... more ... 14, No. 6, December 2003 ( C 2003) Synthesis and Structures of the Novel Pyridoxal Oxime Derivatives Marijana Jukic,1,5 Antonija Hergold-Brundic,2 Mario Cetina,3 Ante Nagl,3 and Jasna Vorkapic-Furac4 Received July 25, 2002; accepted December 11, 2002 ...
Sažetak: In this study, AgBr nanoparticles were prepared by controlled single jet method in the p... more Sažetak: In this study, AgBr nanoparticles were prepared by controlled single jet method in the presence of gelatine and polyvinylpyrrolidone (PVP). In order to obtain better insight about the effect of PVP and its compatibility with gelatine on the formation of AgBr ...
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