Crystal Structure and IR Spectrum of Diaqua(o-phenanthroline) bis(saccharinato)lead(II)

Baran, Enrique J.; Wagner, Claudia C.; Rossi, Mosè; Caruso, Francesco

doi:10.1002/(sici)1521-3749(200003)626:3<701::aid-zaac701>3.0.co;2-o

Cited by 41 publications

(17 citation statements)

References 14 publications

(24 reference statements)

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“…A recent example for the first situation is the complex [Pb(sac) 2 ophen(H 2 O) 2 ] (ophen = 1,10-phenanthroline) in which Pb(II) presents the unusual coordination number eight, with the two saccharinate anions acting as bidentate and the coordination sphere completed by the two N atoms of ophen and the two water Oatoms 27 . In the case of the simpler [Pb(sac) 2 ].H 2 O complex, the bidentate ligand originates a dimeric structure 28 .…”

Section: Bidentate No-coordinated Metal Complexesmentioning

confidence: 99%

The saccharinate anion: a versatile and fascinating ligand in coordination chemistry

Baran¹

2005

Quím. Nova

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Recebido em 14/6/04; publicado na web em 12/11/04The saccharinate anion, obtained by deprotonation of the N-H moiety of saccharin (o-sulfobenzimide) is a very versatile and polyfunctional ligand in coordination chemistry. In this review the different forms of metal-to-ligand interactions involving this anion and some other coordination peculiarities are briefly discussed on the basis of some selected examples.

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Section: Bidentate No-coordinated Metal Complexesmentioning

confidence: 99%

The saccharinate anion: a versatile and fascinating ligand in coordination chemistry

Baran¹

2005

Quím. Nova

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“…This driving force determines smaller Tl±N±Tl angles (96.5(3) and 91.3(3)°, respectively). N (saccharinato)±Pb binding in diaqua(o-phenanthroline)bis(saccharinato)lead(II) [8] differs greatly as the five-membered saccharinate rings are coplanar with Pb II whereas in the present case the angles between the rings and the N±Tl(I) bonds are as follows: Tl(1)±N1 = 25.5, Tl(2)±N1 = 64.0, Tl(1)±N11 = 65.5 and Tl(2)±N11 = 25.1°, very far from coplanarity. Interestingly, the direction of N±Tl bonds, regarding the 5-membered ring, are the same no matter how different the bond lenghts are (Tl(1)±N1 = 2.971 (9) and Tl(2)±N1 = 2.88(1) A Ê are similar, whereas Tl(1)±N11 = 3.30 (1) and Tl(2)±N11 = 2.787(9) A Ê are very different).…”

Section: Crystal Structurementioning

confidence: 65%

“…On the other hand, N´´´O (carbonyl) chelates are also seldom observed in metal saccharinates. The only so far known examples are bis(barium disaccharinate triglyme) [6], [Pb(sac) 2 (H 2 O)] 2 [7] and [Pb(sac) 2 (ophen)(H 2 O) 2 ] [8].…”

Section: Crystal Structurementioning

confidence: 99%

“…They were recrystallized twice from distilled water. Attempts to prepare a mixed ligand complex containing simultaneously saccharinate and o-phenanthroline (ophen), using a similar procedure as that employed for the synthesis of [Pb(sac) 2 ophen(H 2 O)] [8] failed, as always only the pure thallium saccharinate crystallized out, suggesting a very high stability for this species.…”

Section: Synthesis and Properties Of The Complexmentioning

confidence: 99%

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Characterization of Thallium(I) Saccharinate: an unprecedented Coordination of the Saccharinate Ligand

Baran

Wagner

Rossi

et al. 2001

Z. anorg. allg. Chem.

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The crystal structure of [Tl 2 (sac) 2 (H 2 O)] n (sac = saccharinate anion) has been solved using single crystal Xray diffraction. It crystallizes in the triclinic space group P 1 with Z = 2 and presents a polymeric structure formed by two saccharinate anions, one water molecule and two chemically different Tl I cations, one 8-coordinate and the other 5-coordinate. Saccharinate shows an unprecedented coordination behavior as it acts as chelating ligand through its N and carbonyl O atoms with the N atom interacting simultaneously with both metal centers, and participation of sulphonyl oxygen atoms in bonding. The most important features of the IR spectrum of the complex are discussed on the basis of the structural peculiarities.Charakterisierung von Thallium(I) Saccharinat: eine neuartige Bindungsform des Saccharinat Liganden Inhaltsu È bersicht. Die Kristallstruktur von [Tl 2 (sac) 2 (H 2 O)] n (sac = Anion des Saccharins) wurde ro È ntgenographisch an Einkristallen bestimmt. Es kristallisiert in der triklinen Raumgruppe P 1 mit Z = 2 und zeigt eine polymere Struktur, welche aus zwei Saccharinat Anionen, einem Wasser-Moleku È l und zwei chemisch verschiedenen Tl I -Kationen (eines mit der KZ = 8 und das andere mit der KZ = 5) besteht. Das Saccharinat zeigt eine neuartige Bindungsform, da es als Chelatligand u È ber seine N-und O(carbonyl)-Atome fungiert, wobei das N-Atom gleichzeitig mit beiden Metallzentren in Wechselwirkung tritt, und auch die Sulphonyl-Sauerstoffatome an den Bindungen beteiligt sind. Die wichtigsten Aspekte des IR-Spektrums des Komplexes werden an Hand der Strukturbesonderheiten analysiert und besprochen.

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“…Among heavy p-block metal ion, Pb(II) coordination compounds have attracted great interest because of its large ionic radius, variable coordination number, the possible occurrence of a stereochemically active lone pair (6s 2 ) of valence shell electrons on Pb(II) and the novel network of topologies and interesting properties that Pb(II) species display [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Hemidirected Coordination Sphere on Novel Lead(II) Nano Coordination Polymer: Synthesis, Structural Characterization and DFT Calculation of [Pb(p-2-einh)ClO4(MeOH)2]n

Alireza

Mirtamizdoust

Ghaedi

et al. 2015

J Inorg Organomet Polym

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The novel nano lead(II) 1D zigzag coordination polymer [Pb(p-2-einh)ClO 4 (MeOH) 2 ] n (1) (p-p-2-einh = (1-(pyridin-2-yl)ethylidene)isonicotinohydrazide) was synthesized by a sonochemical method. The new nanostructure was characterized by using scanning electron microscopy (SEM) and high-resolution transmission electron microscopy, X-ray powder diffraction and elemental analysis. The single-crystal X-ray analysis reveals a one dimensional zigzag coordination polymer structure for 1, that is further extended into a three-dimensional (3-D) supramolecular structure by p-p and other labile intermolecular interactions. The coordination number of the lead(II) ions is six, PbN 3 O 3 . The PbO nanoparticles were obtained by the thermolysis of 1 at 180°C in presence of oleic acid as a surfactant. The Scherrer equation estimated the average diameter of the nanoparticles to be 15 nm. The morphology and size of the prepared PbO samples were further observed using SEM. The structure of the title complex has been optimized by density functional theory calculations. Calculated structural parameters and IR spectra for the title complex are consistent with the crystal structure.

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Crystal Structure and IR Spectrum of Diaqua(o-phenanthroline) bis(saccharinato)lead(II)

Cited by 41 publications

References 14 publications

The saccharinate anion: a versatile and fascinating ligand in coordination chemistry

The saccharinate anion: a versatile and fascinating ligand in coordination chemistry

Characterization of Thallium(I) Saccharinate: an unprecedented Coordination of the Saccharinate Ligand

Hemidirected Coordination Sphere on Novel Lead(II) Nano Coordination Polymer: Synthesis, Structural Characterization and DFT Calculation of [Pb(p-2-einh)ClO4(MeOH)2]n

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