Rare-earth metal arylamine group compound as well as preparation method and application thereof

[0041] Embodiment one: preparation (2,6-R 1 2 PhNH) 5 Y Li 2 (THF) 2 (R 1 selected from isopropyl):

[0042] (1) Preparation of 2,6-R 1 2 PhNHLi: adding a tetrahydrofuran solution of n-butyl lithium (14.05 mmol) into a tetrahydrofuran solution of an arylamine compound (14.05 mmol) and reacting for 1 to 3 hours to obtain lithium arylamide.

[0043] (2) 2,6-R 1 2 A THF solution of PhNHLi (14.05 mmol) was added to YCl 3 (0.55g, 2.81mmol) of tetrahydrofuran suspension, stirred at 50°C for about 10 hours, the system turned into a light yellow transparent solution, removed tetrahydrofuran under reduced pressure, added 10mL toluene for extraction twice, centrifuged to remove a little precipitate, and transferred the supernatant , concentrated, and stood at room temperature until colorless crystals precipitated, 2.54 g, yield 80%. Elemental analysis: C, 65.80; H, 8.794; N, 5.772; C68 h 106 Li 2 N 2 o 2 Theoretical value of Y: C, 72.38; H, 9.47; N, 6.21; infrared spectru...

[0044] Embodiment two: preparation (2,6-R 1 2 PhNH) 5 SmL 2 (THF) 2 (R 1 selected from isopropyl):

[0045] (1) Preparation of 2,6-R 1 2 PhNHLi: adding a tetrahydrofuran solution of n-butyl lithium (14.05 mmol) into a tetrahydrofuran solution of an arylamine compound (14.05 mmol) and reacting for 1 to 3 hours to obtain lithium arylamide.

[0046] (2) 2,6-R 1 2 A THF solution of PhNHLi (14.61 mmol) was added to SmCl 3 (0.75g, 2.92mmol) in tetrahydrofuran suspension, stirred at 50°C for about 10 hours, the system turned into a light yellow transparent solution, removed THF under reduced pressure, added 10mL toluene for extraction twice, centrifuged to remove a little precipitate, and transferred the supernatant , concentrated, and stood at room temperature until light yellow crystals were precipitated, 2.64 g, yield 76%. Elemental analysis: C, 63.22; H, 8.879; N, 6.141; C 68 h 106 Li 2 N 2 o 2 Sm. Theoretical value: C, 68.64; H, 8.98; N, 5.89; infrared spectrum (...

[0047] Embodiment three: preparation (2,6-R 1 2 PhNH) 5 NdL 2 (THF) 2 (R 1 selected from isopropyl):

[0048] (1) Preparation of 2,6-R 1 2 PhNHLi: adding a tetrahydrofuran solution of n-butyl lithium (14.05 mmol) into a tetrahydrofuran solution of an arylamine compound (14.05 mmol) and reacting for 1 to 3 hours to obtain lithium arylamide.

[0049] (2) 2,6-R 1 2 A THF solution of PhNHLi (15.96mmol) was added to NdCl 3 (0.80g, 3.19mmol) of tetrahydrofuran suspension, stirred and reacted at 50°C for about 10 hours, the system became a light yellow transparent solution, removed THF under reduced pressure, added 10mL toluene for extraction twice, centrifuged to remove a little precipitate, and transferred the supernatant , concentrated, and stood at room temperature until a light blue crystal precipitated, 2.83 g, yield 75%. Elemental analysis: C, 66.26; H, 8.787; N, 5.395; C 68 h 106 Li 2 N 2 o 2 Nd. Theoretical value: C, 69.00; H, 9.03; N, 5.92; infrared spectrum...