Die Kristallstrukturen der silylierten Phosphanimine Me3SiNP(c-C6H11)3 und (Me3SiNPPh2)2CH2

Müller, Armin; Möhlen, M.; Neumüller, Bernhard; Faza, Naim; Massa, W.; Dehnicke, Kurt

doi:10.1002/(sici)1521-3749(199910)625:10<1748::aid-zaac1748>3.3.co;2-e

Cited by 16 publications

(22 citation statements)

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“…21 Likewise, the N1Si1 bond (170.67(2) pm) is elongated by 2.7 pm in comparison to the NSi bond in the iminophosphorane 1 . Similar elongations relative to the related starting materials31, 32 are observed in [(Et 2 O)Li{( o ‐C 6 H 4 )Ph 2 PNSiMe 3 }] 2 14a and lithiated bis(iminophosphorane)methanides 26. 27…”

Section: Resultssupporting

confidence: 62%

Metal Coordination to the Formal PN Bond of an Iminophosphorane and Charge‐Density Evidence against Hypervalent Phosphorus(V)

Kocher

Leusser

Murso

et al. 2004

Chemistry A European J

110

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The iminophosphorane Ph(2)P(CH(2)Py)(NSiMe(3)) (1) was treated with deprotonating alkali metal reagents to give [(Et(2)O)Li[Ph(2)P(CHPy)(NSiMe(3))]] (2), [[Ph(2)P(CH(2)Py)(NSiMe(3))]Li[Ph(2)P(CHPy)(NSiMe(3))]] (3) and [[Ph(2)P(CH(2)Py)(NSiMe(3))]Na[Ph(2)P(CHPy)(NSiMe(3))]] (4). We report their coordination behaviour in solid-state structures and NMR spectroscopic features in solution. Furthermore, we furnish experimental evidence against hypervalency of the phosphorus atom in iminophosphoranes from experimental charge-density studies and subsequent topological analysis. The topological properties, correlated to the results from NMR spectroscopic investigations, illustrate that the formal P=N double bond is better written as a polar P(+)--N(-) single bond. Additionally, the effects of metal coordination on the bonding parameters of the iminophosphorane and the related anion are discussed.

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Section: Resultssupporting

confidence: 62%

Metal Coordination to the Formal PN Bond of an Iminophosphorane and Charge‐Density Evidence against Hypervalent Phosphorus(V)

Kocher

Leusser

Murso

et al. 2004

Chemistry A European J

110

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“…Within the six‐membered ring, C(1), P(1), N(1), and P(2) are essentially coplanar (dihedral angle φ (P(2)‐N(1)‐P(1)‐C(1))=2.6(2)°). NP bond lengths of the P(1)‐N(1)‐P(2) fragment are virtually identical (1.593(2) and 1.599(2) Å, respectively) and are consistent with the PN bond lengths determined for other compounds that contain a [PNP] + fragment,14–16 for example, 1.57(1) Å in [Ph 3 PNPPh 3 ] + and 1.572(3) Å in [Ph 2 (NH 2 )PNP(CH 3 )Ph 2 ] + 16. Therefore, it can be concluded that 2 contains a {PNP} + fragment.…”

Section: Methodssupporting

confidence: 82%

Preparation of amorphous poly(ethylene terephthalate) from U‐polymer via a copolymerization process

Liu

Zhang

et al. 2001

J of Applied Polymer Sci

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U-Polymer, a kind of polyarylate, was synthesized by interfacial polycondensation method with terephthaloyl chloride (TPC), isophthaloyl chloride (IPC), and bisphenol A (BPA) as raw materials. The structure of the U-Polymer was characterized by IR and 1 H-NMR spectra. Then, an amorphous poly(ethylene terephthalate) (APET) was prepared with the introduction of the U-Polymer to the PET sequence to improve thermal and mechanical behaviors of PET via the polymerization process. The structure and property of the APET were characterized by DSC and DMA. The results showed that the APET exhibits amorphism, transparency, higher glass-transition temperature (T g ), and higher storage modulus than that of PET.

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“…[20] The Ru−P bond length is slightly shorter compared with other ruthenium phosphine complexes and the P1−N1−Si1 angle is larger than the average angle reported. [ 21 , 22 ] It is noteworthy that the cyclometallation proceeds in a diastereoselective manner. Only the isomer with the phosphine ligand and the hydrogen atom at the methylene bridge attached on the same side of the former double bond is found in the molecular structure.…”

Section: Resultsmentioning

confidence: 99%

Tuning Ruthenium Carbene Complexes for Selective P−H Activation through Metal‐Ligand Cooperation

Feichtner

Scharf

Scherpf

et al. 2021

Chemistry A European J

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Die Kristallstrukturen der silylierten Phosphanimine Me3SiNP(c-C6H11)3 und (Me3SiNPPh2)2CH2

Cited by 16 publications

References 0 publications

Metal Coordination to the Formal PN Bond of an Iminophosphorane and Charge‐Density Evidence against Hypervalent Phosphorus(V)

Metal Coordination to the Formal PN Bond of an Iminophosphorane and Charge‐Density Evidence against Hypervalent Phosphorus(V)

Preparation of amorphous poly(ethylene terephthalate) from U‐polymer via a copolymerization process

Tuning Ruthenium Carbene Complexes for Selective P−H Activation through Metal‐Ligand Cooperation

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