Tetraethoxysilane → Erbium laurate water

HRID 657445Notes

Reaction equation

HRID 657445 reaction equation
[OH-].C[NH+](C)C.C([SiH3])CC.[NH4+].[Si](OCC)(OCC)(OCC)[O:12]CC.[C:24]([O-:37])(=[O:36])[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH3:35].[Er+3:38].[C:39]([O-:52])(=[O:51])[CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50].[C:53]([O-:66])(=[O:65])[CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH2:63][CH3:64].[OH-].C[N+](C)(C)C>O>[OH2:12].[C:24]([O-:37])(=[O:36])[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH2:34][CH3:35].[Er+3:38].[C:39]([O-:52])(=[O:51])[CH2:40][CH2:41][CH2:42][CH2:43][CH2:44][CH2:45][CH2:46][CH2:47][CH2:48][CH2:49][CH3:50].[C:53]([O-:66])(=[O:65])[CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH2:63][CH3:64]

Participants

8

Reactant 6

HCID 6517Tetraethoxysilane2×HCID 60966Tetramethylammonium hydroxideHCID 11446287Trimethylazanium hydroxideHCID 15904722Erbium LaurateHCID 131729317HCID 131729317, compoundHCID 178435178HCID 178435178, compound

Product 1

HCID 86628345Erbium laurate water

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

An Erbium laurate water solution was prepared and warmed in a closed polypropylene container to 70° C. for 10 hours to induce the complete dissolution of the soap. To this solution Trimethyl ammonium hydroxide was added, and the solution was stirred for a further 2 hours. Ammonium propyl silane was added followed by tetraethyl orthosilicate. The synthesis gel had a final molar ratio of 1:1000: 12.5:1 (Erbium Laurate: water: tetramethyl ammonium hydroxide: Tetraethyl orthosilicate). The synthesis gel was treated hydrothermally, at 110° C. for 3 days before it was filtered and dried at RT under static air conditions. The alkyl chains of the soap were removed by calcination at 500° C., under flowing oxygen. The low angle XRD pattern, FIG. 2a, contains an intense diffraction peak owing to ordering at the mesoscale. The wide-angle diffraction intensities arise from the formation of a crystalline metal oxide phase. HRTEM images, FIGS. 2b and c, confirm the porosity of the sample and the formation of disordered pore in the silicate/metal oxide composite.

Workup

  1. dissolutionthe complete dissolution of the soap
  2. customThe synthesis gel
  3. customThe synthesis gel
  4. additionwas treated hydrothermally, at 110° C. for 3 days before it
  5. filtrationwas filtered
  6. customdried at RT under static air conditions
  7. customThe alkyl chains of the soap were removed by calcination at 500° C., under flowing oxygen

Sources & evidence

ORD record
ord-1d1125fdc7e649bbbbbe221052ae6184
Source dataset
uspto-grants-2011_12
Patent number
US08075867B2

Reaction notes

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