article · Royal Society Open Science · 2026

A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation

Saeed Abad, Gholamhossein Sh. Mohammadnezhad, Fatemeh Ariaeinezhad, Oluseun Akintola, Frank Steiniger, Winfried Plass, Axel Klein

Cited by 0Open access

Abstract

Abstract The Ni(II) complex [NiCl(bda)]+ containing the aliphatic PNP pincer ligand bis((2-diphenylphosphino)ethyl)amine (bda) was covalently immobilized on the mesoporous silica SBA-15. SBA-15 was functionalized with (3-chloropropyl)triethoxysilane as an anchoring agent, which was further reacted with the amine group of the Ni-coordinated bda ligand, forming the hybrid material SBA-15@PTES@Ni. The material was characterized using Fourier-transform infrared spectroscopy, UV-visible-diffuse reflectance spectroscopy, thermogravimetric analysis, low-angle X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and inductively coupled plasma. SBA-15@PTES@Ni was used as a catalyst for the hydrogenation of 4-nitrophenol to 4-aminophenol using NaBH4 in aqueous solution. With catalyst loadings of 1 to 3 mg, complete conversions were achieved in 6 to 10 min, with rate constants up to 6.92 × 10–3 s–1.

Cite this paper

APA 7

Abad, S., Mohammadnezhad, G. S., Ariaeinezhad, F., Akintola, O., Steiniger, F., Plass, W., & Klein, A. (2026). A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation. Royal Society Open Science, 13(9). https://doi.org/10.1098/rsos.251149

MLA 9

Abad, Saeed, et al. “A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation.” Royal Society Open Science, vol. 13, no. 9, 2026, https://doi.org/10.1098/rsos.251149.

Chicago

Abad, Saeed, Gholamhossein Sh. Mohammadnezhad, Fatemeh Ariaeinezhad, Oluseun Akintola, Frank Steiniger, Winfried Plass, and Axel Klein. 2026. “A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation.” Royal Society Open Science 13 (9). https://doi.org/10.1098/rsos.251149.

Harvard

Abad, S. et al. (2026) ‘A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation’, Royal Society Open Science, 13(9). Available at: https://doi.org/10.1098/rsos.251149.

BibTeX

@article{abad2026pincer,
  title = {{A Ni(II) PNP pincer complex immobilized on SBA-15 as catalyst for the 4-nitrophenol hydrogenation}},
  author = {Abad, Saeed and Mohammadnezhad, Gholamhossein Sh. and Ariaeinezhad, Fatemeh and Akintola, Oluseun and Steiniger, Frank and Plass, Winfried and Klein, Axel},
  journal = {Royal Society Open Science},
  volume = {13},
  number = {9},
  year = {2026},
  doi = {10.1098/rsos.251149}
}

Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.