*Various lanthanide complexes synthesized by the green method.*

*Recent Advances in the Green Synthesis of Lanthanide-Based Organic Compounds for Broad… DOI: http://dx.doi.org/10.5772/intechopen.104716*

#### **Figure 4.**

*Diagrammatic representation of the method of synthesis for white-light-emissive AMP/ln-CIP [62].*

tailorable properties [61]. Zhang and co-workers synthesized an amorphous Ln (III) metal–organic coordination polymers of adenosine monophosphate (AMP)/Ln-CIP by green route with tunable white light emission by an organic ligand, i.e. adenosine monophosphate (AMP). In the strong structure of AMP/Ln-CIP, Ln = Gd, Eu, and Tb, CIP can coordinate with the trivalent Ln ions with oxygen atoms of the -CO and -COO group for the fabrication of the trivalent Ln complexes. It also fascinates energy in the ultraviolet range for the sensitization of the red emission of trivalent europium ions and the green emission of trivalent terbium ions. On the basis of the three primary colors theory, through a greener approach of preparation, Zhang strongly fabricated a white-light-emissive nanophosphor compound of AMP/Tb0.1Eu0.9Gd99.0- CIP. On comparing with the different routes of synthesis of the white-light-emitting constituents, this approach is easy, effortless, and environmentally sound. Hence, it is concluded that the AMP/Tb0.1Eu0.9Gd99.0-CIP exhibits several benefits like high quantum yields, long fluorescence lifetime, and high thermostability. Moreover, the homogeneous coordination properties of Tb3+, Eu3+, and Gd3+ permit the in situ doping of these metal ions simultaneously into a parent Ln (III) metal–organic coordination polymers concurrently. Hence, it is believed that this synthetic method can be elongated to develop other Ln-based white-light-emitting materials [62]. The diagrammatic illustration of the method of synthesis for white-light-emissive AMP/ Ln-CIP is shown in **Figure 4**, **Table 2**.

#### **4. Conclusion and future perspectives**

Green or sustainable chemistry's primary goal is to make valuable molecules and provide resources to humans while allowing no environmental damage. Green chemistry contributes to the emergence of novel techniques to prevent ecological degradation by minimizing the number of toxic pollutants and their health effects by commencing with harmless or healthier substances than those now in use. In this chapter, the greener route for the synthesis of Ln-doped nanophosphors, rare-earth zirconates, nucleotide-based lanthanide coordination polymers, self-assembled

nano-spherical dysprosium MOFs, rare-earth ions-doped nanocrystals-based photoluminescent materials, and metal oxide nanoparticles is discussed in detail with their applications in different dimensions. The chapter highlights the role of rare-earth elements in the green synthesis of organic compounds. Lanthanides mainly coordinate with other ligands to give an organic compound by environmentally sound route with less toxic effects and no use of dangerous chemical reagents. These methods of synthesizing organic compounds are necessary for the present scenario because they reduce hazardous damages and decrease pollution levels. The products prepared by the green route are also highly adaptable with the organic matrices.

## **Acknowledgements**

Director CSIR-AMPRI Bhopal is also acknowledged for providing necessary institutional facilities and encouragement.

## **Conflicts of interest**

The authors declare no conflict of interest related to this research work.

## **Author details**

Kamna Chaturvedi1 , Deeksha Malvi2 , Manish Dhangar2 , Harsh Bajpai2 , Ranjan K. Mohapatra3 , Avanish Kumar Srivastava1,2 and Sarika Verma1,2\*

1 Academy of Council Scientific and Industrial Research, Advanced Materials and Processes Research Institute (AMPRI), Bhopal, MP, India

2 Council of Scientific and Industrial Research, Advanced Materials and Processes Research Institute, Bhopal, MP, India

3 Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India

\*Address all correspondence to: drsarikaverma20@gmail.com; sarika.verma@ampri.res.in

© 2022 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Recent Advances in the Green Synthesis of Lanthanide-Based Organic Compounds for Broad… DOI: http://dx.doi.org/10.5772/intechopen.104716*

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#### **Chapter 13**
