Lewis acid-base adducts between NMe3, tmeda (N ,N ,N′ ,N′-tetramethylethylenediamine), and 1.4-dimethylpiperazine as donors and PBr3 as acceptor have been prepared and structurally characterized. NMe3 and tmeda form 1:1 adducts (Me3N)PBr3 (1) and (tmeda)PBr3 (2), respectively, while 1,4-dimethylpiperazine adds 2 molecules of PBr3 leading to [(1,4-dimethylpiperazine)( PBr3)2] (3). Adduct 2 is found in two modifications 2a and 2b with different crystal and molecular structures. (Crystal data of 1: monoclinic P21/n, a = 5.983(3), b = 10.821(2), c = 13.877(5) Å, ß = 99.70(2)°, Z = 4. 2a: monoclinic P21/c, a = 7.891(1), b = 12.826(1), c = 12.218(2) Å ,ß = 102.162(6)°, Z = 4. 2b: monoclinic P21/n, a = 11.687(2), b = 8.375(1), c = 12.668(1) Å, ß = 102.74(1)°, Z = 4. 3: monoclinic P21/c, a = 6.383(3), b = 16.36(3), c = 8.407(3) Å , ß = 101.49(2)°, Z= 2). The molecular structures of 1 and 2 indicate a partially ionic character with a strongly bonded amine and one (1 ) or two (2 ) weakly bonded bromine atoms. In 2 the donor tmeda is bonded through both nitrogen atoms to one phosphorus atom. In 3 the 1,4-dimethylpiperazine ring is in chair conformation, the methyl and PBr3 substituents being in equatorial and axial positions, respectively. Due to axial-axial repulsion the N-P donor-acceptor bonds are long while the P-Br bonds are rather uniform in length.
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Articles in the same Issue
- Structure Determination for the Crystalline Phase of Triphenyl Phosphite by Means of Multi-Dimensional Solid-State NMR and X-Ray Diffraction
- Amido-tert-butylimido-vanadium(V)-Verbindungen. Darstellung, Reaktionen und 51V-NMR-spektroskopische Untersuchungen / Amido-tert-butylimidovanadium(V) Compounds. Synthesis, Reactions and 51V NMR Spectroscopic Studies
- peri-Interactions in Naphthalenes, 5 [1]. On the Impact of peri-Stress and Trityl-Stress upon the Length of N+-C Bonds in 1-Azonia-acenaphthene Cations
- [Co(NH3)6]C1C03 - ein Hexaammincobalt(III)-Komplex mit einer ‘idealen’ Carbonat-Gruppe / [Co(NH3)6]C1C03 - a Hexaamminecobalt(III) Complex with an ‘Ideal’ Carbonate Group
- Crystal Structure and Magnetic Properties of an Oxygen-Bridged Trinuclear Copper(II) Complex
- Importance of Orbital Complementarity in Spin Coupling through Two Different Bridging Groups. Synthesis, Crystal Structure, Magnetic Properties and Magneto-Structural Correlations in a Dicopper(II) Complex of Endogenous Alkoxo Bridging Ligand with Exogenous Pyrazolate
- Thermal Catalytic Hydrosilylation of Conjugated Dienes with Triethylsilane in the Presence of Tricarbonyl(o-xylene)Metal (Metal = Cr, Mo, W) Complexes
- Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr2Si2C (R = Y, La - Nd, Sm, Gd - Ho)
- CsCu3Dy2S5 und CsCu3Er2S5 : Zwei isotype quaternäre Sulfide der Lanthanoide mit Kanalstrukturen / CsCu3Dy2S5 and CsCu3Er2S5: Two Isotypic Quaternary Sulfides of the Lanthanides with Channel Structures
- Donor-Acceptor Complexes between Simple Phosphines. First Structural Data for an Almost Forgotten Class of Compounds
- Donor-Acceptor Complexes between Organoamines and Phosphorus Tribromide
- Orthoamides, LVI [1]. A New Method of Wide Scope for the Preparation of Aryl Formates
- Orthoamide, LVII [1]. Lassen sich aromatische Aldehyde nach Fries aus Arylformiaten hersteilen? / Orthoamides, LVII [1]. Can Aromatic Aldehydes be Prepared from Aryl Formates via the Fries Rearrangement?
- Polysulfonylamine, CXLVII [1]. Die ersten N,N-disulfonylierten Thioharnstoffe: Synthese von (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) und Kristallstruktur der Ditosylverbindung / Polysulfonylamines, CXLVII [1]. The First N,N-Disulfonylated Thioureas: Synthesis of (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) and Crystal Structure of the Ditosyl Compound
- Einige Umsetzungen von Inhydrazinen mit Isocyanaten: [2+2]- und [4+2]Cycloadditionen, (Hydrazinoethinyl)metallierung / Some Reactions of Ynehydrazines with Isocyanates: [2+2]- and [4+2]Cycloadditions, (Hydrazinoethynyl)metallation
- Structural Influence of Hydrogen Bonding and π-Stacking in trans-Diazido-tetrakis( pyrazole)nickel(II) and trans-Diazido-tetrakis(3-methylpyrazoIe)nickel(II)
- 7-Azoniafluorenonderivate durch elektrostatisch aktivierte SNAr-Reaktionen / 7-Azoniafluorenone Derivatives by Electrostatically Activated SNAr-Reactions
- Palladium(II) and Platinum(II) Complexes of N-3-Pyridinylmethanesulfonamide
- Facile Approach to Versatile Chiral Intermediates for Fused Cyclopentanoid Natural Products
- Nukleophile Aromatische Substitution an 2-Fluoroimidazolium-Ionen: Synthese und Kristallstruktur eines dikationischen 2,2-Biimidazolyl- Derivates [1] / Nucleophilic Aromatic Substitution at 2-Fluoroimidazolium Ions: Synthesis and Crystal Structure of a Dicationic 2,2′-Biimidazolyl Derivative [1]
- Interpenetrierende Clusterstränge in der Kristallstruktur von K0,77Nb6Cl15 / Interpenetrating Cluster Chains in the Structure of K0.77Nb6Cl15
- Synthesis and Structure of RE2Rh2Cd (RE = La, Ce, Pr, Nd, Sm)
Articles in the same Issue
- Structure Determination for the Crystalline Phase of Triphenyl Phosphite by Means of Multi-Dimensional Solid-State NMR and X-Ray Diffraction
- Amido-tert-butylimido-vanadium(V)-Verbindungen. Darstellung, Reaktionen und 51V-NMR-spektroskopische Untersuchungen / Amido-tert-butylimidovanadium(V) Compounds. Synthesis, Reactions and 51V NMR Spectroscopic Studies
- peri-Interactions in Naphthalenes, 5 [1]. On the Impact of peri-Stress and Trityl-Stress upon the Length of N+-C Bonds in 1-Azonia-acenaphthene Cations
- [Co(NH3)6]C1C03 - ein Hexaammincobalt(III)-Komplex mit einer ‘idealen’ Carbonat-Gruppe / [Co(NH3)6]C1C03 - a Hexaamminecobalt(III) Complex with an ‘Ideal’ Carbonate Group
- Crystal Structure and Magnetic Properties of an Oxygen-Bridged Trinuclear Copper(II) Complex
- Importance of Orbital Complementarity in Spin Coupling through Two Different Bridging Groups. Synthesis, Crystal Structure, Magnetic Properties and Magneto-Structural Correlations in a Dicopper(II) Complex of Endogenous Alkoxo Bridging Ligand with Exogenous Pyrazolate
- Thermal Catalytic Hydrosilylation of Conjugated Dienes with Triethylsilane in the Presence of Tricarbonyl(o-xylene)Metal (Metal = Cr, Mo, W) Complexes
- Preparation, Properties, and Crystal Structure of Quaternary Silicide Carbides RCr2Si2C (R = Y, La - Nd, Sm, Gd - Ho)
- CsCu3Dy2S5 und CsCu3Er2S5 : Zwei isotype quaternäre Sulfide der Lanthanoide mit Kanalstrukturen / CsCu3Dy2S5 and CsCu3Er2S5: Two Isotypic Quaternary Sulfides of the Lanthanides with Channel Structures
- Donor-Acceptor Complexes between Simple Phosphines. First Structural Data for an Almost Forgotten Class of Compounds
- Donor-Acceptor Complexes between Organoamines and Phosphorus Tribromide
- Orthoamides, LVI [1]. A New Method of Wide Scope for the Preparation of Aryl Formates
- Orthoamide, LVII [1]. Lassen sich aromatische Aldehyde nach Fries aus Arylformiaten hersteilen? / Orthoamides, LVII [1]. Can Aromatic Aldehydes be Prepared from Aryl Formates via the Fries Rearrangement?
- Polysulfonylamine, CXLVII [1]. Die ersten N,N-disulfonylierten Thioharnstoffe: Synthese von (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) und Kristallstruktur der Ditosylverbindung / Polysulfonylamines, CXLVII [1]. The First N,N-Disulfonylated Thioureas: Synthesis of (RSO2)2N-C(S)-NMe2 (R = Me, 4-Me-C6H4) and Crystal Structure of the Ditosyl Compound
- Einige Umsetzungen von Inhydrazinen mit Isocyanaten: [2+2]- und [4+2]Cycloadditionen, (Hydrazinoethinyl)metallierung / Some Reactions of Ynehydrazines with Isocyanates: [2+2]- and [4+2]Cycloadditions, (Hydrazinoethynyl)metallation
- Structural Influence of Hydrogen Bonding and π-Stacking in trans-Diazido-tetrakis( pyrazole)nickel(II) and trans-Diazido-tetrakis(3-methylpyrazoIe)nickel(II)
- 7-Azoniafluorenonderivate durch elektrostatisch aktivierte SNAr-Reaktionen / 7-Azoniafluorenone Derivatives by Electrostatically Activated SNAr-Reactions
- Palladium(II) and Platinum(II) Complexes of N-3-Pyridinylmethanesulfonamide
- Facile Approach to Versatile Chiral Intermediates for Fused Cyclopentanoid Natural Products
- Nukleophile Aromatische Substitution an 2-Fluoroimidazolium-Ionen: Synthese und Kristallstruktur eines dikationischen 2,2-Biimidazolyl- Derivates [1] / Nucleophilic Aromatic Substitution at 2-Fluoroimidazolium Ions: Synthesis and Crystal Structure of a Dicationic 2,2′-Biimidazolyl Derivative [1]
- Interpenetrierende Clusterstränge in der Kristallstruktur von K0,77Nb6Cl15 / Interpenetrating Cluster Chains in the Structure of K0.77Nb6Cl15
- Synthesis and Structure of RE2Rh2Cd (RE = La, Ce, Pr, Nd, Sm)