scholarly journals Synthesis and crystal structures of manganese(I) carbonyl complexes bearing ester-substituted α-diimine ligands

2020 ◽  
Vol 76 (9) ◽  
pp. 1433-1436
Author(s):  
Takatoshi Kanno ◽  
Tsugiko Takase ◽  
Dai Oyama
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Coordination Sphere ◽  
Carbonyl Complexes ◽  
Complex Molecules ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Diimine Ligands ◽  
Distorted Octahedral ◽  
Diimine Ligand

The crystal structures of two manganese(I) complexes with ester-substituted bipyridine or biquinoline supporting ligands are reported, namely, fac-bromidotricarbonyl(diethyl 2,2′-bipyridine-4,4′-dicarboxylate-κ2 N,N′)manganese(I), [MnBr(C16H16N2O4)(CO)3], I, and fac-bromidotricarbonyl(diethyl 2,2′-biquinoline-4,4′-dicarboxylate-κ2 N,N′)manganese(I), [MnBr(C24H20N2O4)(CO)3], II. In both complexes, the manganese(I) atom adopts a distorted octahedral coordination sphere defined by three carbonyl C atoms, a Br− anion and two N atoms from the chelating α-diimine ligand. Both complexes show fac configurations of the carbonyl ligands. In I, the complex molecules are linked by C—H...Br hydrogen bonds and aromatic π–π contacts. In II, intramolecular C—H...O hydrogen bonds are present as well as intermolecular C—H...O and C—H...Br hydrogen bonds and π–π interactions.

scholarly journals Crystal structure of bromido-fac-tricarbonyl[5-(3,4,5-trimethoxyphenyl)-3-(pyridin-2-yl)-1H-1,2,4-triazole-κ2N2,N3]rhenium(I) methanol monosolvate

2017 ◽  
Vol 73 (4) ◽  
pp. 484-487
Author(s):  
Marharyta I. Kharlova ◽  
Kseniia O. Piletska ◽  
Kostiantyn V. Domasevitch ◽  
Alexander V. Shtemenko
Keyword(s):  
Hydrogen Bonds ◽  
Double Layers ◽  
Carbonyl Ligand ◽  
Complex Molecules ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Triazole Ligand ◽  
Solvent Molecules ◽  
Centrosymmetric Dimers

In the title compound, [ReBr(C16H16N4O3)(CO)3]·CH3OH, the ReIatom adopts a distorted octahedral coordination sphere with a facial arrangement of the three carbonyl ligands. Two N atoms of the chelating 5-(3,4,5-trimethoxyphenyl)-3-(pyridin-2-yl)-1H-1,2,4-triazole ligand and two carbonyl ligands define the equatorial plane of the complex, with the third carbonyl ligand and the bromide ligand in axial positions. Conventional hydrogen bonds including the methanol solvent molecules assemble the complex molecules through mutual N—H...O—H...Br links [N...O = 2.703 (3) Å and O...Br = 3.255 (2) Å] into centrosymmetric dimers, whereas weaker C—H...O and C—H...Br hydrogen bonds [C...O = 3.215 (3)–3.390 (4) Å and C...Br = 3.927 (3) Å] connect the dimers into double layers parallel to the (111) plane.

scholarly journals cis,trans-Dicarbonyldichlorido(1,10-phenanthroline-5,6-dione-κ2N,N′)ruthenium(II)

IUCrData ◽  
2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Tsugiko Takase ◽  
Kasumi Takahashi ◽  
Dai Oyama
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Sphere ◽  
Title Compound ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Site Symmetry ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Cl Atoms

In the title compound, [RuCl2(C12H6N2O2)(CO)2], the RuIIatom (site symmetry ..2) adopts a distorted octahedral coordination sphere defined by two carbonyl C atoms, two Cl−anions and two N atoms from the chelating 1,10-phenanthroline-5,6-dione (phendione) ligand. The carbonyl ligands arecisto each other, while the Cl atoms aretrans. In the phendione ligand, the C=O [1.239 (5) Å] and the C—C [1.537 (5) Å] bond lengths in the diketone moiety have typical values. In the crystal, C—H...Cl and C—H...O hydrogen bonds lead to the formation of a three-dimensional supramolecular network.

scholarly journals Selective synthesis and crystal structures of manganese(I) complexes with a bi- or tridentate terpyridine ligand

2020 ◽  
Vol 76 (7) ◽  
pp. 1139-1142
Author(s):  
Kosei Wadayama ◽  
Tsugiko Takase ◽  
Dai Oyama
Keyword(s):  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Metal Ion ◽  
Coordination Mode ◽  
Selective Synthesis ◽  
Complex Molecules ◽  
Carbonyl Ligands ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Bromide Ion

The crystal structures of two manganese(I) complexes with a different coordination mode of the supporting ligand are reported: fac-bromidotricarbonyl(4′-phenyl-2,2′:6′,2′′-terpyridine-κ2 N,N′)manganese(I), [MnBr(C21H15N3)(CO)3], I, and cis-bromidodicarbonyl(4′-phenyl-2,2′:6′,2′′-terpyridine-κ3 N,N′,N′′)manganese(I), [MnBr(C21H15N3)(CO)2], II. In both complexes, the manganese(I) atom is coordinated by terminal carbonyl ligands, a bromide ion, and a 4′-phenyl-2,2′:6′,2′′-terpyridine ligand within a distorted octahedral environment. In I, the metal ion is facially coordinated by three carbonyl ligands and the terpyridine ligand binds in a bidentate fashion. The non-coordinating nitrogen atom in the terpyridine ligand is positioned on the side opposite to the bromido ligand. In II, the metal ion is coordinated by two carbonyl ligands in a cis configuration and the terpyridine ligand binds in a tridentate fashion; notably, one carbonyl and the trans bromido ligand are mutually disordered over two positions. In I, the complex molecules are linked by C—H...Br hydrogen bonds. In II, aromatic π–π contacts are present, as well as pairs of C—H...Br and C—H...O hydrogen bonds.

scholarly journals Crystal structure of (2-amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3O4,N5,O6)aqua(1,10-phenanthroline-κ2N,N′)zinc trihydrate

2015 ◽  
Vol 71 (9) ◽  
pp. m162-m163
Author(s):  
Siddhartha S. Baisya ◽  
Baidyanath Ghosh ◽  
Parag S. Roy
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Carboxylate Ligand ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnIIatom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.16 (5)°]. Classical N—H...O, O—H...N and O—H...O hydrogen bonds and weak C—H...O hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional network. π–π stacking contacts are observed as well, with centroid-to-centroid distances of 3.5679 (14), 3.7004 (14), 3.6641 (15), 3.6974 (13) and 3.3412 (12) Å.

3-(Pyridin-4-yl)acetylacetone: CdII and HgII compete for nitrogen coordination

2017 ◽  
Vol 73 (9) ◽  
pp. 724-730 ◽  
Author(s):  
Khai-Nghi Truong ◽  
Carina Merkens ◽  
Ulli Englert
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Carbonyl Group ◽  
Coordination Sphere ◽  
Aqua Ligand ◽  
Polymeric Chain ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
The One

3-(Pyridin-4-yl)acetylacetone (HacacPy) acts as a pyridine-type ligand towards CdII and HgII halides. With CdBr2, the one-dimensional polymer [Cd(μ-Br)2(HacacPy)Cd(μ-Br)2(HacacPy)2]∞ is obtained in which five- and six-coordinated CdII cations alternate in the chain direction. Reaction of HacacPy with HgBr2 results in [Hg(μ-Br)Br(HacacPy)]∞, a polymer in which each HgII centre is tetracoordinated. In both compounds, each metal(II) cation is N-coordinated by at least one HacacPy ligand. Equimolar reaction between these CdII and HgII derivatives, either conducted in ethanol as solvent or via grinding in the solid state, leads to ligand redistribution and the formation of the well-ordered bimetallic polymer catena-poly[[bromidomercury(II)]-μ-bromido-[aquabis[4-hydroxy-3-(pyridin-4-yl)pent-3-en-2-one]cadmium(II)]-di-μ-bromido], [CdHgBr4(C10H11NO2)2(H2O)] n or [{HgBr}(μ-Br){(HacacPy)2Cd(H2O)}(μ-Br)2]∞. HgII and CdII cations alternate in the [100] direction. The HacacPy ligands do not bind to the HgII cations, which are tetracoordinated by three bridging and one terminal bromide ligand. The CdII centres adopt an only slightly distorted octahedral coordination. Three bromide ligands link them in a (2 + 1) pattern to neighbouring HgII atoms; two HacacPy ligands in a cis configuration, acting as N-atom donors, and a terminal aqua ligand complete the coordination sphere. Classical O—H...Br hydrogen bonds stabilize the polymeric chain. O—H...O hydrogen bonds between aqua H atoms and the uncoordinated carbonyl group of an HacacPy ligand in a neighbouring strand in the c direction link the chains into layers in the (010) plane.

scholarly journals trans-Diaquabis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato-κ2O,O′)cobalt(II) dihydrate

IUCrData ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Takumi Tominaga ◽  
Tomoyuki Mochida
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Sphere ◽  
Title Compound ◽  
Octahedral Coordination ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral

The CoIIatom in the mononuclear title compound, [Co(C5HF6O2)2(H2O)2]·2H2O, is situated on an inversion centre and exhibits a slightly distorted octahedral coordination sphere. In the crystal, molecules are arranged in layers parallel to (100), held together by O—H...O and O—H...F hydrogen bonds.

scholarly journals cis-Bis(1,10-phenanthroline-κ2N,N′)bis(pyridin-4-amine-κN1)ruthenium(II) bis(hexafluoridophosphate)

2013 ◽  
Vol 69 (2) ◽  
pp. m75-m76
Author(s):  
Mariana R. Camilo ◽  
Felipe T. Martins ◽  
Valéria R. S. Malta ◽  
Javier Ellena ◽  
Rose M. Carlos
Keyword(s):  
Title Complex ◽  
Coordination Geometry ◽  
Screw Axis ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Diimine Ligands ◽  
Hydrogen Bonding Interactions ◽  
Counter Ions ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title complex, [Ru(C12H8N2)2(C5H6N2)2](PF6)2, the RuIIatom is bonded to two α-diimine ligands,viz.1,10-phenanthroline (phen), in acisconfiguration, in addition with with two 4-aminopyridine (4Apy) ligands, resulting in a distorted octahedral coordination geometry. N—H...F hydrogen-bonding interactions play an important role in the crystal assembly: 21-screw-axis-related complex molecules and PF6−counter-ions alternate in helical chains formed along theaaxis by means of these contacts. N—H...π contacts (H...centroid = 3.45 Å) are responsible for cross-linking between the helical chains along [001].

scholarly journals Crystal structure of dichlorido{2-[(2-hydroxyethyl)(pyridin-2-ylmethyl)amino]ethanolato-κ4N,N′,O,O′}iron(III) dihydrate from synchrotron data

2014 ◽  
Vol 70 (11) ◽  
pp. 334-336
Author(s):  
Jong Won Shin ◽  
Dae-Woong Kim ◽  
Dohyun Moon
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Coordination Sphere ◽  
Title Compound ◽  
Water Molecules ◽  
Bond Lengths ◽  
Distorted Octahedral Coordination ◽  
Lattice Water ◽  
Dimeric Unit ◽  
Distorted Octahedral

In the title compound, [Fe(C10H15N2O2)Cl2]·2H2O, the FeIIIion is coordinated by two N and two O atoms of the tetradentate 2-{(2-hydroxyethyl)(pyridin-2-ylmethyl)amino}ethanolate ligand and by two chloride anions, resulting in a distorted octahedral coordination sphere. The average Fe—X(X= ligand N and O atoms) and Fe—Cl bond lengths are 2.10 and 2.32 Å, respectively. In the crystal, duplex O—H...O hydrogen bonds between the hydroxyl and ethoxy groups of two neighbouring complexes give rise to a dimeric unit. The dimers are connected to the lattice water molecules (one of which is equally disordered over two sets of sites) through O—H...Cl hydrogen bonds, forming undulating sheets parallel to (010). Weak C—H...Cl hydrogen bonds are also observed.

scholarly journals cis-Bis(2,2′-bipyridine-κ2N,N′)bis(pyridin-4-amine-κN1)ruthenium(II) bis(hexafluoridophosphate) acetonitrile monosolvate

2013 ◽  
Vol 69 (2) ◽  
pp. m77-m78
Author(s):  
Mariana R. Camilo ◽  
Felipe T. Martins ◽  
Valéria R. S. Malta ◽  
Javier Ellena ◽  
Rose M. Carlos
Keyword(s):  
Hydrogen Bonds ◽  
Building Blocks ◽  
Title Complex ◽  
Screw Axis ◽  
Complex Molecules ◽  
Diimine Ligands ◽  
Counter Ions ◽  
Distorted Octahedral ◽  
Solvent Molecules ◽  
Octahedral Configuration

In the title complex, [Ru(C10H8N2)2(C5H6N2)2](PF6)2·CH3CN, the RuIIatom is bonded to two α-diimine ligands,viz.2,2′-bipyridine, in acisconfiguration and to two 4-aminopyridine (4Apy) ligands in the expected distorted octahedral configuration. The compound is isostructural with [Ru(C10H8N2)2(C5H6N2)2](ClO4)2·CH3CN [Duanet al.(1999).J. Coord. Chem.46, 301–312] and both structures are stabilized by classical hydrogen bonds between 4Apy ligands as donors and counter-ions and acetonitrile solvent molecules as acceptors. Indeed, N—H...F interactions give rise to an intermolecularly locked assembly of two centrosymmetric complex molecules and two PF6−counter-ions, which can be considered as the building units of both crystal architectures. The building blocks are connected to one another through hydrogen bonds between 4Apy and the connecting pieces made up of two centrosymmetric motifs with PF6−ions and acetonitrile molecules, giving rise to ribbons running parallel to [011]. 21-Screw-axis-related complex molecules and PF6−counter-ions alternate in helical chains formed along theaaxis by means of these contacts.

scholarly journals Crystal structures of (μ2-η2,η2-4-hydroxybut-2-yn-1-yl 2-bromo-2-methylpropanoate-κ4C2,C3:C2,C3)bis[tricarbonylcobalt(II)](Co—Co) and [μ2-η2,η2-but-2-yne-1,4-diyl bis(2-bromo-2-methylpropanoate)-κ4C2,C3:C2,C3]bis[tricarbonylcobalt(II)](Co—Co)

2014 ◽  
Vol 70 (7) ◽  
pp. 9-13
Author(s):  
C. John McAdam ◽  
Stephen C. Moratti ◽  
Brian H. Robinson ◽  
Jim Simpson ◽  
Roderick G. Stanley
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Coordination Geometry ◽  
Carbonyl Ligands ◽  
Axis Direction ◽  
Distorted Octahedral Coordination ◽  
Dicobalt Octacarbonyl ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Cluster Cores

The title compounds, [Co2(C8H11BrO3)(CO)6], (1), and [Co2(C12H16Br2O4)(CO)6], (2), result from the replacement of two carbonyl ligands from dicobalt octacarbonyl by the alkynes 4-hydroxybut-2-ynyl 2-bromo-2-methylpropanoate and but-2-yne-1,4-diyl bis(2-bromo-2-methylpropanoate), respectively. Both molecules have classic tetrahedral C2Co2cluster cores with the CoIIatoms in a highly distorted octahedral coordination geometry. The alkyne ligands both adopt acis-bent conformation on coordination. In the crystal structure of (1), classical O—H...O and non-classical C—H...O contacts form inversion dimers. These combine with weak O...O and Br...O contacts to stack the molecules into interconnected columns along theb-axis direction. C—H...O and C—H...Br contacts stabilize the packing for (2), and a weak Br...O contact is also observed. Interconnected columns of molecules again form along theb-axis direction.

Sign in / Sign up

Export Citation Format

Share Document