N. Kerbellec - Academia.edu (original) (raw)
Papers by N. Kerbellec
![Research paper thumbnail of Malonate-Containing Manganese (III) Complexes: Synthesis, Crystal Structure, and Magnetic Properties of AsPh4 [Mn (mal) 2 (H2O) 2]](https://attachments.academia-assets.com/71262930/thumbnails/1.jpg)
](Inorganic …, 2006
Operator b C(22)-H(22) ... O(11) 3.506(12) 141.3(6) x, y, z+1 C(23)-H(23) ... O(12) 3.418(14) 141... more Operator b C(22)-H(22) ... O(11) 3.506(12) 141.3(6) x, y, z+1 C(23)-H(23) ... O(12) 3.418(14) 141.3(7)-x+1,-y+1,-z+1 C(23)-H(23) ... O(14) 3.537(14) 138.2(7)-x+1,-y+1,-z+1 C(24)-H(24) ... O(4) 3.564(14) 169.0(8)-x,-y+1,-z+1 C(28)-H(28) ... O(1w) 3.227(13) 137.6(6) x, y, z+1 C(29)-H(29) ... O(4) 3.623(14) 177.4(8)-x,-y,-z+1 C(29)-H(29) ... O(2) 3.635(14) 135.7(8)-x,-y,-z+1 C(35)-H(35) ... O(2w) 3.394(15) 132.9(8) x, y, z C(36)-H(36) ... O(12) 3.317(13) 154.5(8) x, y, z C(42)-H(42) ... O(1) 3.560(14) 135.7(7) x+1, y, z+1 C(42)-H(42) ... O(2) 3.357(13) 154.7(7)-x+1,-y,-z+1 C(43)-H(43) ... O(4) 3.469(14) 140.2(8)-x+1,-y,-z+1 C(44)-H(44) ... O(14) 3.543(12) 122.1(6)-x+1,-y,-z+1
Journal of Alloys and Compounds, 2008
Reaction in water between a lanthanide ion (Ln=Sm–Dy) and the sodium salt of isophthalic acid lea... more Reaction in water between a lanthanide ion (Ln=Sm–Dy) and the sodium salt of isophthalic acid leads to a new family of lanthanide-based coordination polymers. The crystal structure has been solved on the basis of the Gd containing compound. The iso-structurality of the other compounds has been assumed on the basis of powder X-ray diffraction diagrams. These compounds of general formula Ln2(OH)(C8H4O4)2(C8H5O4)(H2O)8·6H2O crystallize in the monoclinic system, space group P21/a (no. 14) with a=17.4249(2)Å, b=10.9148(1)Å, c=20.7216(2)Å, β=113.1694(4)° and Z=4. This crystal structure is 1-D. Chains are bound to each other by hydrogen bonds. The thermal stability of these compounds is described and discussed as well as luminescent properties of the coordination polymers involving luminescent rare earth ions.
Inorganica Chimica Acta, 2009
Reaction in water between trivalent lanthanide ions and ctc 3À ligand leads to [Ln(ctc)(H 2 O) 2 ... more Reaction in water between trivalent lanthanide ions and ctc 3À ligand leads to [Ln(ctc)(H 2 O) 2 Á 2.5H 2 O] 1 3-D molecular networks with Ln = Tb-Yb or Y. These compounds look like molecular precursors for porous solids. Unfortunately, the dehydrated phases are not structurally characterized. We report here the study of the partially dehydrated phases with general formula [Ln (H 2 O) 2 ] 1 with Ln = Tb-Yb or Y obtained by freeze-drying of the corresponding hydrated phases. Their porosity is estimated as well as the luminescent properties of the Tb-containing compound. (O. Guillou). 1 This 3-D coordination polymer crystallizes in the monoclinic system, space group C2/c (no. 15) with a = 13.3944(16) Å, b = 12.2501(9) Å, c = 15.9220(16) Å, b = 92.089(13)°, and Z = 8. (CCDC no. 151349).
![Research paper thumbnail of Structure and magnetic properties of Ln2[Cu(opba)]3(DMSO)6(H2O)·(H2O) compounds with LnLa–Lu exhibiting ladder-like molecular motifs](https://attachments.academia-assets.com/44588741/thumbnails/1.jpg)
](Inorganica Chimica Acta, 2005
The reaction of Ln(III) ions with the precursor [Cu(opba)] 2À in DMSO has afforded a series of is... more The reaction of Ln(III) ions with the precursor [Cu(opba)] 2À in DMSO has afforded a series of isostructural compounds of general chemical formula Ln 2 [Cu(opba)] 3 (DMSO) 6 (H 2 O) AE (H 2 O), where Ln(III) stands for a lanthanide ion and opba stands for ortho-phenylenebis(oxamato). The crystal structure has been solved for the Gd(III) containing compound. It crystallizes in the orthorhombic system, space group Pbn2 1 (No. 33) with a = 9.4183(2) Å , b = 21.2326(4) Å , c = 37.9387(8) Å and Z = 4. The structure consists of ladder-like molecular motifs parallel to each other. To the best of our knowledge, this is the first Ln(III)Cu(II) coordination polymer family exhibiting the same crystal structure over the whole lanthanide series. The magnetic properties of the compounds have been investigated and the magnetic behavior of the Gd(III) containing compound was studied in more detail.
Inorganica Chimica Acta, 2013
Ni 3-x Cr 2x/3 (PO 4 ) 2 (x ¼0 and 0.02) microcrystalline powders were obtained as single phases ... more Ni 3-x Cr 2x/3 (PO 4 ) 2 (x ¼0 and 0.02) microcrystalline powders were obtained as single phases via a modified sol-gel Pechini-type in situ polymerizable complex method. The samples were characterized using scanning electron microscopy, X-ray diffraction, cathodoluminescence (CL), and thermoluminescence (TL) techniques. We found that Cr 3+ doping modified the average particle and distribution. The mean particle size was 0.441 μm for Ni 3 (PO 4 ) 2 and 0.267 μm for Ni 2.98 Cr 0.013 (PO 4 ) 2 . The results also reveal that Cr 3+ doping notably enhanced the CL and TL UV-blue emission.
Inorganic Chemistry, 2006
The reaction of the Er3+ ion with polycarboxylate ligands in gel media leads to coordination poly... more The reaction of the Er3+ ion with polycarboxylate ligands in gel media leads to coordination polymers exhibiting various structural types and dimensionalities. Five Er3+/1,4-benzenedicarboxylate-based coordination polymers have been obtained in such conditions. Four out of the five are new. Their crystal structures are reported and compared herein. Compound 1, namely, Er2Ter3(H2O)6, where H2Ter symbolizes the terephthalic acid, crystallizes in the space group P1 (No. 2) with a = 7.8373(10) A, b = 9.5854(2) A, c = 10.6931(2) A, alpha = 68.7770(8) degrees, beta = 70.8710(8) degrees, and gamma = 75.3330(12) degrees. It has already been reported elsewhere. The last four compounds are new. Compound 2, namely, Er2Ter3(H2O)6 x 2 H2O, crystallizes in the space group P121/a1 (No. 14) with a = 6.7429(2) A, b = 22.4913(7) A, c = 9.6575(3) A, and beta = 91.6400(18) degrees. Compound 3, namely Er2Ter3(H2O)8 x 2 H2O crystallizes in the space group P1 (No. 2) with a = 7.5391(2) A, b = 10.0533(3) A, c = 10.4578(3) A, alpha = 87.7870(10) degrees, beta = 82.5510(11) degrees, and gamma = 86.2800(16) degrees. Compound 4, namely, Er2Ter3(H2O)6 x 2 H2O crystallizes in the space group C2/c (No. 15) with a = 38.5123(13) A, b = 11.1241(4) A, c = 7.0122(2) A, and beta = 98.634(2) degrees. Compound 5, namely, Er2Ter3(H2O)6 x H2O, crystallizes in the space group P1 (No. 2) with a = 6.8776(10) A, b = 11.0420(2) A, c = 18.5675(3) A, alpha = 84.7240(6) degrees, beta = 81.8380(6) degrees, and gamma = 84.1770(8) degrees. A computational method has also been developed to evaluate the potential porosity of the coordination polymers. This method is described and then applied to the different Er2Ter3(H2O)n coordination polymers previously described.
Inorganic Chemistry, 2009
Reactions in water between mixtures of rare earth ions (Ln =Y, La-Tm, except Pm) and the sodium s... more Reactions in water between mixtures of rare earth ions (Ln =Y, La-Tm, except Pm) and the sodium salt of terephthalic acid lead to an infinite family of isostructural heteropolynuclear coordination polymers. The monophasic character of the synthesized powders as well as the isostructurality of the heteropolynuclear compounds with the previously described mononuclear [Tb(2)(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) are ascertained on the basis of the X-ray powder diffraction diagrams. One family of heterodinuclear compounds has been studied in detail, that is, [(La(2-x)Y(x))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with 0 < or = x < or = 2. This study demonstrates the random character of the spatial distribution of the metallic ions. In order to demonstrate the high modularity of the physical properties, the solid-state luminescent properties of the compounds of general formula [(Eu(2-x)Tb(x))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with 0 < or = x < or = 2 have been studied and compared to those of the corresponding mixtures of [(Eu(2))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) and [(Tb(2))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity). In order to confirm the general character of these studies, the compound containing in equal proportions all 13 rare earth ions between La and Tm (except Pm) plus Y has been synthesized and characterized. At last, the solid-state luminescent properties of compounds belonging to the ternary system [(Ce(2-x-y)Eu(x)Tb(y))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with x + y < or = 2 are briefly described.
Inorganic …, 2006
Operator b C(22)-H(22) ... O(11) 3.506(12) 141.3(6) x, y, z+1 C(23)-H(23) ... O(12) 3.418(14) 141... more Operator b C(22)-H(22) ... O(11) 3.506(12) 141.3(6) x, y, z+1 C(23)-H(23) ... O(12) 3.418(14) 141.3(7)-x+1,-y+1,-z+1 C(23)-H(23) ... O(14) 3.537(14) 138.2(7)-x+1,-y+1,-z+1 C(24)-H(24) ... O(4) 3.564(14) 169.0(8)-x,-y+1,-z+1 C(28)-H(28) ... O(1w) 3.227(13) 137.6(6) x, y, z+1 C(29)-H(29) ... O(4) 3.623(14) 177.4(8)-x,-y,-z+1 C(29)-H(29) ... O(2) 3.635(14) 135.7(8)-x,-y,-z+1 C(35)-H(35) ... O(2w) 3.394(15) 132.9(8) x, y, z C(36)-H(36) ... O(12) 3.317(13) 154.5(8) x, y, z C(42)-H(42) ... O(1) 3.560(14) 135.7(7) x+1, y, z+1 C(42)-H(42) ... O(2) 3.357(13) 154.7(7)-x+1,-y,-z+1 C(43)-H(43) ... O(4) 3.469(14) 140.2(8)-x+1,-y,-z+1 C(44)-H(44) ... O(14) 3.543(12) 122.1(6)-x+1,-y,-z+1
Journal of Alloys and Compounds, 2008
Reaction in water between a lanthanide ion (Ln=Sm–Dy) and the sodium salt of isophthalic acid lea... more Reaction in water between a lanthanide ion (Ln=Sm–Dy) and the sodium salt of isophthalic acid leads to a new family of lanthanide-based coordination polymers. The crystal structure has been solved on the basis of the Gd containing compound. The iso-structurality of the other compounds has been assumed on the basis of powder X-ray diffraction diagrams. These compounds of general formula Ln2(OH)(C8H4O4)2(C8H5O4)(H2O)8·6H2O crystallize in the monoclinic system, space group P21/a (no. 14) with a=17.4249(2)Å, b=10.9148(1)Å, c=20.7216(2)Å, β=113.1694(4)° and Z=4. This crystal structure is 1-D. Chains are bound to each other by hydrogen bonds. The thermal stability of these compounds is described and discussed as well as luminescent properties of the coordination polymers involving luminescent rare earth ions.
Inorganica Chimica Acta, 2009
Reaction in water between trivalent lanthanide ions and ctc 3À ligand leads to [Ln(ctc)(H 2 O) 2 ... more Reaction in water between trivalent lanthanide ions and ctc 3À ligand leads to [Ln(ctc)(H 2 O) 2 Á 2.5H 2 O] 1 3-D molecular networks with Ln = Tb-Yb or Y. These compounds look like molecular precursors for porous solids. Unfortunately, the dehydrated phases are not structurally characterized. We report here the study of the partially dehydrated phases with general formula [Ln (H 2 O) 2 ] 1 with Ln = Tb-Yb or Y obtained by freeze-drying of the corresponding hydrated phases. Their porosity is estimated as well as the luminescent properties of the Tb-containing compound. (O. Guillou). 1 This 3-D coordination polymer crystallizes in the monoclinic system, space group C2/c (no. 15) with a = 13.3944(16) Å, b = 12.2501(9) Å, c = 15.9220(16) Å, b = 92.089(13)°, and Z = 8. (CCDC no. 151349).
Inorganica Chimica Acta, 2005
The reaction of Ln(III) ions with the precursor [Cu(opba)] 2À in DMSO has afforded a series of is... more The reaction of Ln(III) ions with the precursor [Cu(opba)] 2À in DMSO has afforded a series of isostructural compounds of general chemical formula Ln 2 [Cu(opba)] 3 (DMSO) 6 (H 2 O) AE (H 2 O), where Ln(III) stands for a lanthanide ion and opba stands for ortho-phenylenebis(oxamato). The crystal structure has been solved for the Gd(III) containing compound. It crystallizes in the orthorhombic system, space group Pbn2 1 (No. 33) with a = 9.4183(2) Å , b = 21.2326(4) Å , c = 37.9387(8) Å and Z = 4. The structure consists of ladder-like molecular motifs parallel to each other. To the best of our knowledge, this is the first Ln(III)Cu(II) coordination polymer family exhibiting the same crystal structure over the whole lanthanide series. The magnetic properties of the compounds have been investigated and the magnetic behavior of the Gd(III) containing compound was studied in more detail.
Inorganica Chimica Acta, 2013
Ni 3-x Cr 2x/3 (PO 4 ) 2 (x ¼0 and 0.02) microcrystalline powders were obtained as single phases ... more Ni 3-x Cr 2x/3 (PO 4 ) 2 (x ¼0 and 0.02) microcrystalline powders were obtained as single phases via a modified sol-gel Pechini-type in situ polymerizable complex method. The samples were characterized using scanning electron microscopy, X-ray diffraction, cathodoluminescence (CL), and thermoluminescence (TL) techniques. We found that Cr 3+ doping modified the average particle and distribution. The mean particle size was 0.441 μm for Ni 3 (PO 4 ) 2 and 0.267 μm for Ni 2.98 Cr 0.013 (PO 4 ) 2 . The results also reveal that Cr 3+ doping notably enhanced the CL and TL UV-blue emission.
Inorganic Chemistry, 2006
The reaction of the Er3+ ion with polycarboxylate ligands in gel media leads to coordination poly... more The reaction of the Er3+ ion with polycarboxylate ligands in gel media leads to coordination polymers exhibiting various structural types and dimensionalities. Five Er3+/1,4-benzenedicarboxylate-based coordination polymers have been obtained in such conditions. Four out of the five are new. Their crystal structures are reported and compared herein. Compound 1, namely, Er2Ter3(H2O)6, where H2Ter symbolizes the terephthalic acid, crystallizes in the space group P1 (No. 2) with a = 7.8373(10) A, b = 9.5854(2) A, c = 10.6931(2) A, alpha = 68.7770(8) degrees, beta = 70.8710(8) degrees, and gamma = 75.3330(12) degrees. It has already been reported elsewhere. The last four compounds are new. Compound 2, namely, Er2Ter3(H2O)6 x 2 H2O, crystallizes in the space group P121/a1 (No. 14) with a = 6.7429(2) A, b = 22.4913(7) A, c = 9.6575(3) A, and beta = 91.6400(18) degrees. Compound 3, namely Er2Ter3(H2O)8 x 2 H2O crystallizes in the space group P1 (No. 2) with a = 7.5391(2) A, b = 10.0533(3) A, c = 10.4578(3) A, alpha = 87.7870(10) degrees, beta = 82.5510(11) degrees, and gamma = 86.2800(16) degrees. Compound 4, namely, Er2Ter3(H2O)6 x 2 H2O crystallizes in the space group C2/c (No. 15) with a = 38.5123(13) A, b = 11.1241(4) A, c = 7.0122(2) A, and beta = 98.634(2) degrees. Compound 5, namely, Er2Ter3(H2O)6 x H2O, crystallizes in the space group P1 (No. 2) with a = 6.8776(10) A, b = 11.0420(2) A, c = 18.5675(3) A, alpha = 84.7240(6) degrees, beta = 81.8380(6) degrees, and gamma = 84.1770(8) degrees. A computational method has also been developed to evaluate the potential porosity of the coordination polymers. This method is described and then applied to the different Er2Ter3(H2O)n coordination polymers previously described.
Inorganic Chemistry, 2009
Reactions in water between mixtures of rare earth ions (Ln =Y, La-Tm, except Pm) and the sodium s... more Reactions in water between mixtures of rare earth ions (Ln =Y, La-Tm, except Pm) and the sodium salt of terephthalic acid lead to an infinite family of isostructural heteropolynuclear coordination polymers. The monophasic character of the synthesized powders as well as the isostructurality of the heteropolynuclear compounds with the previously described mononuclear [Tb(2)(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) are ascertained on the basis of the X-ray powder diffraction diagrams. One family of heterodinuclear compounds has been studied in detail, that is, [(La(2-x)Y(x))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with 0 < or = x < or = 2. This study demonstrates the random character of the spatial distribution of the metallic ions. In order to demonstrate the high modularity of the physical properties, the solid-state luminescent properties of the compounds of general formula [(Eu(2-x)Tb(x))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with 0 < or = x < or = 2 have been studied and compared to those of the corresponding mixtures of [(Eu(2))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) and [(Tb(2))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity). In order to confirm the general character of these studies, the compound containing in equal proportions all 13 rare earth ions between La and Tm (except Pm) plus Y has been synthesized and characterized. At last, the solid-state luminescent properties of compounds belonging to the ternary system [(Ce(2-x-y)Eu(x)Tb(y))(C(8)H(4)O(4))(3)(H(2)O)(4)](infinity) with x + y < or = 2 are briefly described.