Photo-oxidation of metal carbynes

Photo-oxidation of the metal carbyne complexes (η-C⁵H₅)L₁L₂MCR (MMo, W; L₁, L₂CO, P(OMe)₃; R ≡ phenyl, cyclopropyl) generates radical that are extremely reactive. Depending on the reaction conditions, either the oxidized species exhibit the ligand exchange and atom abstraction processes typical of metal radicals, or the carbyne ligands undergo a series of highly unusual rearrangement to yield organic products. For the cyclopropyl carbynes (η⁵-C₅H₅)[P(OMe)₃](CO)MC(c-C₃H₅), photo-oxidation in the absence of added ligands results in the formation of cyclopentenone. When substituents are present on the cyclopropyl ring, single regioisomers or stereoisomers of the resulting cyclopentenones are produced.     

Surfactants having polyfluoroalkyl chains. II. Syntheses of anionic surfactants having two polyfluoroalkyl chains including a trifluoromethyl group at each tail and their flocculation-redispersion ability for dispersed magnetite particles in water

Anionic surfactants having two polyfluoroalkyl chains per molecule, i.e. the sodium salt of bis(1H, 1H, 2H,2H-heptadeca-fluorodecyl)-2-sulfosuccinate, CF₃(CF₂)₇(CH₂)₂OCOCH₂CH(SO₃Na)COO(CH₂)₂(CF₂)₇CF₃, the sodium salt of bis(1H, 1H, 2H, 2H-tridecafluoro-octyl)-2-sulfosuccinate, CF₃(CF₂)₅(CH₂)₂OCOCH₂CH(SO₃Na)COO(CH₂)₂(CF₂)₅CF₃, and the sodium salt of bis(1H, 1H, 2H, 2H-nonafluorohexyl)-2-sulfosuccinate, CF₃(CF₂)₃(CH₂)₂OCOCH₂CH(SO₃Na)COO(CH₂)₂(CF₂)₃CF₃, have been prepared from maleic anhydride, the corresponding alcohols possessing a polyfluoroalkyl chain and sodium hydrogen sulfite. The flocculation and redispersion abilities of these surfactants for dispersed magnetic particles in water have been examined to investigate the effect of the chain length. It was found that this ability was enhanced by an increase in the chain length. The contact angles for water for pelleted surface-modified magnetite have been measured. In order to compare this ability and the contact angles, data for other fluorinated surfactant have been obtained. The Kraff point, the surface tension and the pNa of the aqueous surfactant solutions have also been measured.     

Microporous Zinc Formate for Efficient Separation of Acetylene over Carbon Dioxide

Separation of acetylene(C₂H₂) from carbon dioxide(CO₂) by adsorbents is very challenging owing to their high similarity on molecular shape and dimension. Exploring inexpensive and easily available porous materials is of importance to facilitate the practical implementation of the challenging but energy-efficient separation. Herein, we utilize an easily available porous material[Zn₃(HCOO)₆] for the selective separation of C₂H₂ over CO₂. Because of the pore confinement in[Zn₃(HCOO)₆](pore size of 0.47 nm) and accessible oxygen sites for preferential binding of C₂H₂, this material exhibits high low-pressure uptake for C₂H₂(63 cm³/cm³ at 10 kPa and 298 K) and high C₂H₂/CO₂ selectivity(7.4 under ambient conditions) that is comparable to those of out-performing porous materials. The efficient separation of[Zn₃(HCOO)₆] for C₂H₂/CO₂ mixture has also been confirmed by the breakthrough experiments.     

Complex formations of silver(I) trifluoroacetate and trifluoromethanesulfonate with benzene and cyclohexene

An apparatus for measurements of equilibrium ligand vapor pressure has been applied in order to determine the stoichiometry of benzene and cyclohexene complexes of silver(I) trifluoroacetate (AgCF₃CO₂) and silver(I) trifluoromethanesulfonate (silver(I) triflate, AgCF₃SO₃) in the solid state. It has been found that the equilibrium leads the formation of such complexes as: (AgCF₃CO₂)₂(C₆H₆), (AgCF₃CO₂)₂(C₆H₁₀), (AgCF₃CO₂)₂(C₆H₁₀)₃, (AgCF₃SO₃)₂(C₆H₆), (AgCF₃SO₃)(C₆H₆), (AgCF₃SO₃)(C₆H₁₀) and (AgCF₃SO₃)(C₆H₁₀)₂. The temperature dependence of the gas-solid equilibrium ligand pressure has also been examined for these complexes, and the enthalpy and entropy changes according to the following complex dissociation reactions were estimated: (AgCF₃CO₂)L_m (s) AgCF₃CO₂ (s)+mL (g): and (AgCF₃SO₃)L_n (s) AgCF₃SO₃ (s)+nL (g), where L's are benzene and cyclohexene. On the basis of the thermodynamic data obtained, the effects of the counter anion as well as the ligand on the complex stability are discussed.     

Template reactions with polynuclear complexes. The reaction of [Mo2(O2CCF3)4(PR3)2] (R = Ph, Et) with 2-aminobenzaldehyde

The binuclear molybdenum(II) complexes [Mo₂(O₂CCF₃)₄(PR₃)₂] (R = Ph, Et) act as templates for the self-condensation of 2-aminobenzaldehyde to give a new class of complexes in which a hydride ion bridges two molybdenum(III) centres, each of which carries a tetradentate macrocyclic ligand (C). The new hydrido complexes [Mo₂(C)₂ (H)(O₂CCF₃)₃(PPh₃)₂] (I), [Mo₂(C)₂(H)₂(O₂CCF₃)₂(PPh₃)₂] (II), and [Mo₂(C)₂ (H)₂(O₂CCF₃)₂(PEt₃)₂]₂ (V) exist in two or more isomeric forms as shown by their IR, ¹H, ³¹P and ¹⁹F NMR spectra. Substitution with thiocyanate, nitrate and tetraphenylborate anions gives the new products [Mo₂(C)₂(H)(CO)(NCS)₃(PPh₃)₂] (III), [Mo₂(C)₂ (H)₂(O₂CCF₃)(NO₃)(PPh₃)₂] (IV), [Mo₂(C)₂(H)(O₂CCF₃)(PPh₃)₂](BPh₄)₂ (VI) and [Mo₂(C)₂(H)₂(O₂CCF₃)(PEt₃)₂](BPh₄) (VII), which also exist in isomeric forms.     

一些富勒烯C60双加成物稳定性的理论研究

Ｃ6 0 具有 30个等同的可参与化学反应的活泼双键 ,制备并表征富勒烯多加成产物是富勒烯化学中最前沿的课题之一 .Ｈｉｒｓｃｈ等[15 ]通过研究Ｃ6 0 亚甲基加成反应 ,提出了双加成物立体选择性的一般规律 .我们在Ｃ6 0 氧加成方面做了类似的研究工作[6 8].本文选取几类富勒烯环双加成衍生物即富勒烯氧化产物Ｃ6 0 Ｏ2 [6 ]( 1 )、富勒烯含氮衍生物Ｃ6 0 (ＮＨ) 2 [5 ]( 2 )、富勒烯含吡咯环衍生物Ｃ6 0 (ＣＨ2 ＮＨＣＨ2 ) 2 [9]( 3)和富勒醇前体Ｃ6 0 (ＳＯ4) 2 [10 ]( 4)作为模型分子进行理论研究 ,以探寻富勒烯多加成反应的一般性规律 .…     

Silsesquioxane Chemistry, 4.: Silsesquioxane Complexes of Titanium(III) and Titanium(IV)

Reaction of the incompletely condensed silsesquioxane derivative Cy₇Si₇O₉(OH)₃ (1) with Ti(OEt)₄ affords the dimeric titanasilsesquioxane [(Cy₇Si₇O₁₂)Ti(μ-OEt)(EtOH)]₂ (13) in 81% yield. The known titanasilsesquioxane [Cy₇Si₇O₁₁(OSiMe₃)]₂Ti (18) has been prepared through a modified procedure starting from titanium tetraalkoxides. Novel oxotitanium silsesquioxane derivatives are obtained from reactions of titanocene dihalides with Cy₇Si₇O₉(OH)₂(OSiMe₃) (14). Cp₂TiCl₂ yields dinuclear (μ-O)[{Cy₇Si₇O₁₁(OSiMe₃)}TiCp]₂ (19), while with Cp^*₂TiCl₂ the trinuclear titanacycle Cp^*₂Ti₃O₃[Cy₇Si₇O₁₁(OSiMe₃)]₂ (20) is obtained. In addition, a new synthetic route to model compounds for titanium catalysts immobilized on silica has been developed. Disilylated Cy₇Si₇O₉(OH)(OSiMe₃)₂ (15) cleanly reacts with the ‘tucked-in’ fulvene complex Cp*Ti(C₅Me₄CH₂) to give the titanium(III) silsesquioxane Cp*₂Ti[Cy₇Si₇O₁₀(OSiMe₃)₂] (21). In a similar manner treatment of Cp*Ti(C₅Me₄CH₂) with Cy₇Si₇O₉(OH)₂(OSiMe₃) (14) affords the mono(pentamethylcyclopentadienyl) complex Cp*Ti[Cy₇Si₇O₁₁(OSiMe₃)][Cy₇Si₇O₁₀-(OH)(OSiMe₃)] (22) which is an advanced model compound for a catalytically active titanium center on a silica surface. The molecular structures of these titanium silsesquioxane derivatives have been determined by X-ray diffraction analyses.     

Two Pentavanadate-based Organic-inorganic Materials with Third-order NLO Properties

Two isolated organic-inorganic pentavanadate-based hybrids,[H2N(CH3)2]6.34[V^V(μ3-O)4V4^IVO5(SO4)4]·(SO4)0.67·(DMF)·[HN(CH3)2]1.66(1)and [(HN)2(CH2)2(CH3)4][V^V(μ3-O)4V4^IVO5(SO4)4][H2N(CH3)2]3@(DMF)@ [HN(CH3)2]0.5(2)(DMF=N,N-dimethylformamide)have been synthesized under solvothermal conditions and structurally characterized.In compound 1,three adjacent basic units form a triangle type cluster.The symmetric double-layer exists in compound 2.The study of the third-order nonlinear optical(NLO)properties for the two compounds demonstrates that the two-photon absorption(TPA)cross-section σ values of compounds 1 and 2 are 1372 and 1228 GM,respectively,indicating that both compounds may have potential application in optical field.     

Adsorption of Nin (n=1 -4) clusters on perfect and O-defective CuAl2O4 surfaces: A DFT study

The adsorption energies for single Ni atom on CuAl₂O₄(100) and (110) surfaces are 5.30 and 4.08 eV, respectively. The growth and aggregation of Ni can be effectively inhibited on the perfect CuAl₂O₄(100) surface. The adsorption of Ni on the spinel surface is accompanied by charge transfer. The interaction of Ni with CuAl₂O₄ surface is stronger than with the γ-Al₂O₃(110) surface.     

Redox potential, ligand and structural effects in rhodium(I) complexes

The electrochemical behaviour of the set of tetracoordinate rhodium(I) complexes [Rh(O^∩O)(CO)L] [O^∩O=MeC(O)CHC(O)Me (acac), L=CO (1), P(NC₄H₄)₃ (2), PPh(NC₄H₄)₂ (3), PPh₂(NC₄H₄) (4), PPh₃ (5), PCy₃ (6), P(OPh)₃ (7) or PPh₂(C₆H₄OMe-4) (8); O^∩O=PhC(O)CHC(O)Me (bac), L=CO (9) or PPh₃ (10); O^∩O=PhC(O)CHC(O)CF₃(bta), L=CO (11) or PPh₃ (12)] and of the pentacoordinate [RhH(CO)L₃] [L=P(NC₄H₄)₃ (13), PPh₃ (14), P(OPh)₃ (15) or P(OC₆H₄Me-4)₃ (16)] and [RhHL₄] [L=PPh₃ (17) or P(OC₆H₄Me-3)₃ (18)] was studied by cyclic voltammetry and controlled potential electrolysis, in aprotic medium, at a Pt electrode. They present a single-electron oxidation wave (I) (irreversible or quasi-reversible) that can be followed, at a higher potential, by a second and irreversible one (II). The values of first oxidation potential for the tetracoordinate complexes fit the additive Lever's electrochemical parameterisation, and the ligand electrochemical Lever E_L and Pickett P_L parameters were estimated for the N-pyrrolyl phosphines PPh_n(NC₄H₄)_3−n (n=0, 1 or 2) and for the organophosphines PCy₃ and PPh₂(C₆H₄OMe-4), the former behaving as weaker net electron donors (the electron donor ability decreases with the increase of the number of N-pyrrolyl groups) than the latter phosphines. The pentacoordinate hydride complexes 13–18 fit a distinct relationship which enabled the estimate of the E_L ligand parameter for the phosphites P(OC₆H₄Me-3)₃ and P(OC₆H₄Me-4)₃. Electrochemical metal site parameters were obtained for the square planar and the pentacoordinate Rh(I)/Rh(II) couples and, for the former, the redox potential is shown to present a much higher sensitivity to a change of a ligand than the octahedral redox couples investigated so far. Linear relationships were also observed between the oxidation potential and the P_L ligand parameter (for the series [Rh(acac)(CO)L]) or the infrared ν(CO) frequency, and a generalisation of the former type of correlation is proposed for series of square-planar 16-electron complexes [M′_SL] with a common 14-electron T-shaped binding metal centre {M′_S}. Oxidation of 5 by Ag[PF₆] leads to the dimerisation of the derived Rh(II) species.     

Übergangsmetall-silyl-komplexe L. darstellung, struktur und reaktivität der Trihydrido-Silyl-und -Stannyl-Komplexe L3FeH3(ER3) (E =Si,

Photochemical reaction of (CO)₂(dppe)Fe(H)(SiR₃) with HSiR₃ (SiR₃ = Si(OMe)₃, Si(OEt)₃, SiMe₃, SiMe₂Ph, SiPh₃) yields the trihydrido silyl complexes (CO)(dppe)FeH₃(SiR₃ ). The analogous complexes (PR′Ph₂)₃ FeH₃(ER₃) are prepared by reaction of the H₂ -complexes (PR′Ph₂)₃FeH₂(H₂) with HER₃ (ER₃ = SiMe₃, SiMC₂Ph, SiMePh₂, SiPh₃, Si(Me₂)OSi(Me₂)H, SnPh₃, SnEt₃). Additional derivates of (CO) (dppe)FeH₃(SiR₃) (SiR₃ = SiMePh₂) and (PR′Ph₂)₃FeH₃(SiR₃) (SiR₃ = Si(OMe)₃, SiH₂Ph, SiHPh₂, Si(OEt)₃, SiMePhCl) are accessible by silane exchange starting from (CO)(dppe)FeH₃(SiMe₃) and (PR′Ph₂) ₃FeH₃(SiMe₃). (PBuPh₂)₃FeH₃(SiMePh₂) was also prepared from (PBuPh₂)₃FeH₂(N₂) and HSiMePh₂, and (PBuPh₂)₃FeH₃(SnMe₃) from (PBuPh₂)₃FeH₂(H₂) and Me₃SnCl. The complex (PBuPh₂) ₃FeH₃(SnMe₃) crystallizes as a toluene solvate in the cubic space group I 3d and shows crystallographically imposed C₃-symmetry. The complexes (CO)₂ (dppe)Fe(H)(SiR₃) and (PR′Ph₂)₃FeH₃(ER₃) are highly dynamic in solution. Low temperature NMR measurements and the E, Fe, H coupling constants strongly indicate that the exchange mechanism involves η²-HER₃ ligands.     

Structures and conformations of trifluoromethanesulfonic anhydride, (CF3SO2)2O, and bis(trifluoromethylsulfonyl)difluoromethane, (CF3SO2)2CF2

The geometric structures and conformational properties of trifluoromethanesulfonic anhydride, (CF₃SO₂)₂O, and bis(trifluoromethylsulfonyl)difluoromethane, (CF₃SO₂)₂CF₂ have been studied by gas electron diffraction (GED) and ab initio calculations (HF/3–21G*). The calculations predict for both systems two stable conformers with C₂ symmetry and one with C₁ symmetry. In both compounds structures with C₂ symmetry and dihedral angles SOSC ≈ 100° ((CF₃SO₂)₂O) and SCSC≈ 150° ((CF₃SO₂)₂CF₂ are lowest in energy. According to the GED analyses the dominant conformer of (CF₃SO₂)₂O₂ possesses C₂ symmetry with SOSC dihedral angles of 99.1(14)°. The presence of up to 30% of the two other conformers cannot be excluded; for (CF₃SO₂)₂CF₂ only one conformer with C₂ symmetry and SCSC dihedral angles of 143(2)° is observed. A complete set of geometric parameters is given.     

Normal coordinate analysis of MSiH3 moieties in transition metal complexes and comparison to results obtained for silyl halides

In order to examine the influence of the transition metal on the metal-silyl fragment MSiH₃ and the metal-silicon bond, polarized Raman spectra of the complexes (C₅R₅)(CO)₂FeSiH₃ R = H (Cp) (1a), Me (Cp^*) (1b)], (C₅H₅)(CO)(PPh₃)FeSiH₃ (1c), (C₅Me₅)(CO)₂RuSiH₃ (2), (C₅R₅)(CO)₂(PMc₃)MoSiH₃ [R = H (3a), Me (3b)], and (C₅R₅)(CO)₂(PMe₃)WSiH₃ [R = H(4a), Me (4b)] have been recorded. The spectral data have been evaluated and interpreted on the basis of a normal coordinate analysis of the MSiH₃ core and the derived force constants and potential energy distributions were compared to results obtained for analogous halogen derivatives in the series XSiH₃ [X = Br (5), I (6)].     

恒温石墨炉中基体对钾和镉的影响

电热原子化原子吸收分析易受基体的干扰,使得准确度的提高受到限制.有关减少和消除这个影响已有报导^[1-6]。Czobik等^[6]人曾指出,为减少和消除基体的干扰,应设计一种具有时间和空间上等热条件的石墨炉。恒温石墨炉有上述的性质,用它作原子化器能消除和减少基体的影响。     

Thermal studies of novel molecular perovskite energetic material (C6H14N2)[NH4(ClO4)3]

(C6H(14)N2)[NH4(ClO4)3] is a newly developed porous hybrid inorganic-organic framework material with easy access and excellent detonation performances,however,its thermal properties is still unclear and severely hampered further applications.In this study,thermal behaviors and non-isothermal decomposition reaction kinetics of(C6H(14)N2)[NH4(ClO4)3] were investigated systematically by the combination of differential scanning calorimetry(DSC) and simultaneous thermal analysis methods.In-situ FTIR spectroscopy technology was applied for investigation of the structure changes of(C6H(14)N2) NH4(ClO4)3]and some selected referents for better understanding of interactions between different components during the heating process.Experiment results indicated that the novel molecular perovskite structure renders(C6H(14)N2)[NH4(ClO4)3] better thermal stability than most of currently used energetic materials.Underhigh temperature s,the stability of the cage skeleton constructed by NH4^+and ClO4^-ions determined the decomposition process rather than organic moiety confined in the skeleton.The simple synthetic method,good detonation performances and excellent thermal properties make(C6H(14)N2)[NH4(ClO4)3] an ideal candidate for the preparation of advanced explosives and propellants.     

八电子Pd4四面体团簇的电子结构稳定性分析

基于理论计算,我们报道了T_d对称性的[Pd₄(μ₃-SbH₃)₄(SbH₃)₄]团簇及一系列类似物的结构与成键。成键分析表明：每个Pd原子都是sp³杂化,其10个价电子与四个配体提供的8个价电子,满足18电子规则。并且,每个Pd原子与四个桥连的SbH₃配体可以形成四个离域的四中心两电子超级σ键或八中心两电子键。一方面,根据超原子网络模型,这个钯团簇可以描述成四个2电子的超原子网络。另一方面,凝胶模型表明,它可以合理化的作为电子组态是1S²1P⁶的8电子超原子。与此同时,d¹⁰…d¹⁰闭壳层相互作用在稳定Pd₄四面体结构中起到了关键性的作用。密度泛函理论计算表明：T_d对称性[Pd₄(μ₃-SbH₃)₄(SbH₃)₄]团簇表现出高度稳定性,具有充满的电子壳层,大的HOMO-LUMO带隙(2.84 eV)以及负的核独立化学位移(NICS)值。此外,基于[Pd₄(μ₃-SbH₃)₄(SbH₃)₄]结构与成键模式,我们设计了一系列稳定的类似物,其有可能被实验合成出来。     

M/(MgO)y(CeO2)1－y(M=Ni、Co、Cu)催化剂的催化甲烷燃烧性能

采用溶胶凝胶法制备了M/(MgO)_y(CeO2)_1－y(M=Ni、Co、Cu)催化剂. 研究了催化剂Ni/(MgO)y(CeO₂)_1－y催化活性与Ce含量的关系, 当y＝0.9时, 催化剂的活性和稳定性最好. 对比研究了(MgO)_0.9(CeO2)_0.1为载体, 负载Ni、Co、Cu活性组分的催化剂催化甲烷燃烧性能. 结果表明, 负载Cu的催化剂活性最好, 但二次评价后催化剂已烧结；负载Ni的催化剂活性与负载Cu的催化剂相差不大, 且稳定性最好, 经1000 ℃焙烧的Ni/(MgO)_0.9(CeO2)_0.1催化剂比表面仍有14.32 m₂•g^－1, 具有较高的催化活性和很好的热稳定性；负载Co的催化剂活性不如前两者, 稳定性居中, 但比表面降低得最少, 抗烧结能力强.     

Behaviour of water-soluble dinuclear rhodium complexes in the hydroformylation reaction of oct-1-ene

The biphasic hydroformylation reaction of oct-1-ene, has been investigated by using the water-soluble dinuclear complex [Rh₂(μ-S^tBu)₂(CO)₂(TPPTS)₂] as precursor. Addition of ethanol as a cosolvent dramatically improved the yields but the good regioselectivity in linear aldehyde observed for neat oct-1-ene—water systems (97%) decreased to 83% (for 22% ethanol w/w). It is shown that the dinuclear framework cannot be maintained, that the mononuclear complex [RhH(CO)(TPPTS)₃] is formed, and that thiol and significant amounts of [Rh₂(μ-S^tBu)₂(CO)₄] move into the organic phase. This reaction from the dinuclear species requires the simultaneous presence of water and carbon monoxide. Introduction of the water-soluble thiol HS(CH₂)₃NMe₂ in the bridging positions affords the complex [Rh₂(μ-S(CH ₂)₃NHMe₂)₂(CO)₂(TPPTS)₂]Cl₂ which can be kept in the aqueous hase but has a low level of catalytic activity.     

Metal–metal bonding in metal–string complexes M3(dpa)4X2 (M = Ni, Co, dpa = di(2-pyridyl)amido, and X = Cl, NCS) from resonance Raman and infrared spectroscopy

Infrared and Raman spectra for metal–string complexes M₃(dpa)₄X₂ (M = Ni, Co, dpa = di(2-pyridyl)amido, and X = Cl, NCS) are studied. We assign the Ni₃ asymmetric stretching vibration to infrared lines at 304 and 311 cm⁻¹ for Ni₃(dpa)₂Cl₂ and Ni₃(dpa)₂(NCS)₂, respectively. A Raman shift at 242 cm⁻¹ is assigned to the Ni₃ symmetric stretching mode. For Co₃ complexes a line for the Co₃ asymmetric stretching mode appears at 313 and 331 cm⁻¹ for Co₃(dpa)₂Cl₂ and Co₃(dpa)₂(NCS)₂, respectively.     

三丁基氧化膦-离子液体体系萃取UO2(NO3)2的机理和选择性

研究了三辛基氧化膦(TOPO)和三丁基氧化膦(TBPO)在离子液体(ILs) 1-烷基-3-甲基咪唑双三氟甲基磺酰亚胺盐(C_nmimNTf₂, n=2, 4, 6, 8)中萃取分离UO₂(NO₃)₂. TOPO-C₂mimNTf₂和TOPO-C₄mimNTf₂体系萃取UO₂(NO₃)₂时会出现三相, 而TBPO萃取UO₂(NO₃)₂的萃合物可以很好地溶解在所有离子液体中. 论文也考察了萃取过程中的萃取剂浓度效应、酸效应、盐效应. 水相加入HNO₃会降低萃取效率. 盐效应证明了萃取是一种阳离子交换机理. 水相中加入NO₃^-能够提高U的萃取, 这说明NO₃^-参与萃取. 选择性研究表明: 除了在高酸度下对Zr 的显著萃取, TBPO-C₄mimNTf₂萃取体系在低酸度下对U呈现较好的选择性; 去除U后, 在低酸度下该体系对三价Nd 仍保持较好的选择性. 通过定量比较离子液体中NO₃^-进入量, 电喷雾质谱(ESI-MS)和紫外光谱表征确定了TBPO-C_nmimNTf₂中萃取机理的差异性. 萃取中存在两种萃合物, 即UO₂(TBPO)₃(NO₃)⁺和UO₂(TBPO)₃²⁺, 其中UO₂(TBPO)₃(NO₃)⁺的比例从C₂mimNTf₂体系到C₈mimNTf₂体系逐渐增加.