1983
DOI: 10.1021/ja00342a067
|View full text |Cite
|
Sign up to set email alerts
|

Bis(borane)-cyclenphosphorane: a stable adduct in which two phosphorus(V)-bonded nitrogen atoms display donor character

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
5
0

Year Published

1983
1983
1998
1998

Publication Types

Select...
8

Relationship

3
5

Authors

Journals

citations
Cited by 19 publications
(6 citation statements)
references
References 0 publications
1
5
0
Order By: Relevance
“…When for example the frequency of the v(C0) vibrations of M(CO),L adducts are measured-a commonly used approach to probe the a-accepting ability of a ligand L-one observes that these frequencies are significantly higher than L = 1 than with related but acyclic phosphorus ligands reputed to be strongly Ir-acid (Scheme 17). [22][23][24][25][26][27][28]29 This again is in line with the p,-d, rationale: the overlap of the orbitals concerned being expected to be less effective when nitrogen is pyramidal, the a-acid character of the phosphorus with respect to the metal should be enhanced; but the strain imposed on the angles at phosphorus is also expected to influence this character.…”
Section: Effects Of the Nitrogen Atom On The Donor Character Of The Psupporting
confidence: 57%
“…When for example the frequency of the v(C0) vibrations of M(CO),L adducts are measured-a commonly used approach to probe the a-accepting ability of a ligand L-one observes that these frequencies are significantly higher than L = 1 than with related but acyclic phosphorus ligands reputed to be strongly Ir-acid (Scheme 17). [22][23][24][25][26][27][28]29 This again is in line with the p,-d, rationale: the overlap of the orbitals concerned being expected to be less effective when nitrogen is pyramidal, the a-acid character of the phosphorus with respect to the metal should be enhanced; but the strain imposed on the angles at phosphorus is also expected to influence this character.…”
Section: Effects Of the Nitrogen Atom On The Donor Character Of The Psupporting
confidence: 57%
“…Crystals of C8H23B2N4P ( , = 227.9) were found to be orthorhombic, with cell dimensions a = 6.217 (2) Á, b = 12.557 (4) Á, and c = 16.519 (6) Á and V = 1289.6 Á3. The space group is P2{2{1\ with Z = 4 and a calculated density of 1.17 g-cnT3.…”
Section: Methodsmentioning
confidence: 99%
“…3•5 The harder BF3 is more inclined to coordinate at nitrogen, and N-bonded BF3 adducts have indeed been reported to form with F2PNMe26 and FPN(Me)(CH2)2NMe.7 The recent obtainment of a stable adduct in which two borane groups are coordinated to two nitrogen atoms occupying apical positions on a five-coordinated bipyramidal phosphorus atom must also be mentioned. 8 The bicyclic aminophosphanes 1-39 are attractive because their bicyclic structure forces the P-bonded nitrogen atom to remain pyramidal; 1 is obtained as a mixture of meso and racemic f Université de Nice.…”
Section: Introductionmentioning
confidence: 99%
“…IR v(P)B_H(asym) 2395(vs), cm"1; v(P)B_H(sym) 2330(w) cm"1; V(N)B-H(asym) 2460 (vs) cm"1; "(N)B-H(sym) 2280 (s) cm"1. Mass spectrum (15 eV, 150 °C): = C6H18B2N02P; m/e (relative intensity) 346 (8) [2 M -CH3], 190 (8) [MH], 175 (11) [M -CH3], 160 (100) [C6H12NG2P], 117 (28) The borane adducts are stable for several months in the solid state. They are generally slightly soluble in toluene, more soluble in chloroform, dichloromethane, or acetonitrile; the solubility increases with the number of methyl groups present on the cyclic frame.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation