Mono- and di-nickellaazaphosphiranes of mono- and bis-(amido)cyclodiphosph(iii)azanes

Lief, Graham R.; Carrow, Christopher J.; Stahl, Lothar; Staples, Richard J.

doi:10.1039/b105359k

Cited by 18 publications

(14 citation statements)

References 12 publications

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“…In contrast to the other metal complexes of the [ t BuNP(m-N t Bu)] 2 22 dianions discussed so far, those involving nickel(II) form strained three-membered rings through coordination to P(III) and N atoms rather than a strain-free N,N9-chelated metallacycle. 80,90 The isolation of threemembered metallacycles is relatively common in nickel(II) chemistry. (84).…”

Section: Complexes With Neutral Cyclodipnict(iii)azanesmentioning

confidence: 99%

“…(84). 90 The reaction of ZrCl 4 with [ t BuN(H)P(m-t NBu)] 2 in the presence of n BuLi produces the imidozirconium complex (85, Chart 23) in which the zirconium centre is N,N9-chelated by a dianionic [ t BuNP(m-N t Bu)] 2 22 ligand and coordinated in an The arsenic analogue 88c was also prepared by treatment of [{As 2 (NCy) 4 } 2 Na 4 ] (38a) with CuCl, albeit in low yield (5%). 58 The M 4 core in these tetrameric complexes is essentially square planar and the Sb 2 N 2 rings are more puckered than in the corresponding alkali-metal derivatives.…”

Section: Complexes With Neutral Cyclodipnict(iii)azanesmentioning

confidence: 99%

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Chemistry of pnictogen(iii)–nitrogen ring systems

2007

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This critical review covers significant recent advances in the chemistry of pnictogen(III)-nitrogen ring systems, also known as cyclopnict(III)azanes. The synthetic methodologies and reactions of the heavier pnictogen systems are compared with the well-developed chemistry of cyclophosph(III)azanes. Particular attention is focused on ring-oligomerization processes and the use of four-membered E(2)N(2) rings as building blocks for the synthesis of macrocyclic molecules. Main-group element and transition-metal complexes are also discussed (95 references).

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Section: Complexes With Neutral Cyclodipnict(iii)azanesmentioning

confidence: 99%

Section: Complexes With Neutral Cyclodipnict(iii)azanesmentioning

confidence: 99%

Chemistry of pnictogen(iii)–nitrogen ring systems

2007

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“…1,2 They find applications in various fields such as coordination chemistry, [3][4][5][6][7][8] in anti-tumour studies 9,10 and in catalytic organic transformations. [11][12][13] The dichlorocyclodiphosphazanes, cis-{ClP(μ-NR)} 2 , have been effectively explored as building blocks in the synthesis of a large range of phosphorus-nitrogen macrocycles.…”

Section: Introductionmentioning

confidence: 99%

A mixed-valent cyclodiphosphazane: Transition metal chemistry and cis/trans isomerisation

2015

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The hydrolysis of cis-{ClP(μ-N t Bu) 2 P(NH t Bu)} (1) produced a mixed P III /P V derivative of cyclodiphosphazane, cis-{( t BuNH)P(μ-N t Bu) 2 P(O)H} (2). The treatment of 2 with elemental selenium resulted in the formation of the monoselenide, trans-dichloromethane afforded corresponding mononuclear complexes, [(η 3 -C 3 H 5 )PdCl{( t BuNH)P(μ-N t Bu) 2 P(O)H}] (4) and [((η 6 -p-cymene)RuCl 2 ){( t BuNH)P(μ-N t Bu) 2 P(O)H}] (5). The treatment of 2 with M(COD)Cl 2 (M = Pd and Pt) in dichloromethane at room temperature gave [MCl 2 {( t BuNH)P(μ-N t Bu) 2 P(O)H} 2 ] (6 M = Pd; 7 M = Pt) in good yield.Owing to the cis/trans isomerisation of the cyclodiphosphazane rings, the complexes 6 and 7 exist as a mixture of two isomers. Various NMR spectroscopic techniques were employed for structural elucidation. The molecular structures of 5 and 7 were established by single crystal X-ray crystallographic studies.

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“…[4][5][6][7][8][9][10] Both main group and transition metal chemistry of cyclodiphosphazanes have been extensively studied in the last two decades. [11][12][13][14][15][16] Many of these derivaives find applications in organometallic chemistry, macrocyclic chemistry, antitumor studies, 17,18 chemical sensors, 19 luminesence 20 and homogeneous catalysis. [21][22][23][24][25] Recently cyclodiphosphazanes have been utilized in designing metal-organic frameworks with sodalite 26 and diamondoid 27 topoligies and also in biradical based small molecule activations.…”

Section: Introductionmentioning

confidence: 99%

Macrocyclic cyclodiphosphazane $$[\{\hbox {P}(\mu \hbox {-}^{t}\hbox {BuN})\}_{2}(\hbox {O}-m-\hbox {C}_{6}\hbox {H}_{4}\hbox {CHNCH}_{2})_{2}]_{2}$$ [ { P ( μ - t BuN ) } 2 ( O - m - C 6 H 4 CHNCH 2 ) 2 ] 2 : synthesis of chalcogen derivatives and gold(I) complex

2017

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The synthesis of a Schiff base-appended macrocycle [{P(μ-t BuN)} 2 (O − m − C 6 H 4 CHNCH 2) 2 ] 2 (1) containing cyclodiphosphazane moieties is described. Reactions of 1 with H 2 O 2 and elemental selenium yielded derivatives tetrakis(oxide) [{P(O)(μ-t BuN)} 2 (O − m − C 6 H 4 CHNCH 2) 2 ] 2 (2) and tetrakis(selenide)[{P(Se)(μ-t BuN)} 2 (O − m − C 6 H 4 CHNCH 2) 2 ] 2 (3), in ∼80% yield. Tetragold complex [Au 4 Cl 4 {{P(μ-t BuN)} 2 (O − m − C 6 H 4 CHNCH 2) 2 } 2 ] (4) was prepared by reacting 1 with [AuCl(SMe 2)] in 1:4 molar ratio. All the compounds have been characterized by various spectroscopic techniques. The molecular structure of 3 was confirmed by single crystal X-ray analysis.

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Mono- and di-nickellaazaphosphiranes of mono- and bis-(amido)cyclodiphosph(iii)azanes

Cited by 18 publications

References 12 publications

Chemistry of pnictogen(iii)–nitrogen ring systems

Chemistry of pnictogen(iii)–nitrogen ring systems

A mixed-valent cyclodiphosphazane: Transition metal chemistry and cis/trans isomerisation

Macrocyclic cyclodiphosphazane $$[\{\hbox {P}(\mu \hbox {-}^{t}\hbox {BuN})\}_{2}(\hbox {O}-m-\hbox {C}_{6}\hbox {H}_{4}\hbox {CHNCH}_{2})_{2}]_{2}$$ [ { P ( μ - t BuN ) } 2 ( O - m - C 6 H 4 CHNCH 2 ) 2 ] 2 : synthesis of chalcogen derivatives and gold(I) complex

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