two mixed-ligand lanthanide–hydrazone complexes: [pr(ncs)3(pbh)2]·h2o and [nd(ncs)(no3)(pbh)2(h2o)]no3·2.33h2o [pbh is n′-(pyridin-2-ylmethylidene)benzohydrazide, c13h11n3o]
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2016
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Abstract
The gel-mediated syntheses and crystal structures of [N′-(pyridin-2-ylmethylidene-κN)benzohydrazide-κ2N′,O]tris(thiocyanato-κN)praseodymium(III) monohydrate, [Pr(NCS)3(C13H11N3O)2]·H2O, (I), and aqua(nitrato-κ2O,O′)[N′-(pyridin-2-ylmethylidene-κN)benzohydrazide-κ2N′,O](thiocyanato-κN)neodymium(III) nitrate 2.33-hydrate, [Nd(NCS)(NO3)(C13H11N3O)2(H2O)]NO3·2.33H2O, (II), are reported. The Pr3+ ion in (I) is coordinated by two N,N,O-tridentate N′-(pyridin-2-ylmethylidene)benzohydrazide (pbh) ligands and three N-bonded thiocyanate ions to generate an irregular PrN7O2 coordination polyhedron. The Nd3+ ion in (II) is coordinated by two N,N,O-tridentate pbh ligands, an N-bonded thiocyanate ion, a bidentate nitrate ion and a water molecule to generate a distorted NdN5O5 bicapped square antiprism. The crystal structures of (I) and (II) feature numerous hydrogen bonds, which lead to the formation of three-dimensional networks in each case.
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paschalidis2016actatwo
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| Authors | ;Damianos G. Paschalidis;William T. A. Harrison |
| Journal | Disability and rehabilitation |
| Year | 2016 |
| DOI |
10.1107/S2056989015024962
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