TY - JOUR
T1 - 1D Cobalt-Cytidine Monophosphate Coordination Polymer Exhibiting Efficient Ultraviolet Second-Harmonic Generation
AU - Ilyas, Mubashar
AU - Xiong, Lin
AU - Zhang, Li
AU - Maida,
AU - Khan, Maroof Ahmad
AU - Abbas, Muhammad
AU - Manurkar, Nagesh
AU - Ilyas, Mudassar
AU - Zhang, Niu
AU - Li, Hui
N1 - Publisher Copyright:
© 2026 Wiley-VCH GmbH.
PY - 2026/4/25
Y1 - 2026/4/25
N2 - In pursuit of new ultraviolet (UV) nonlinear optical (NLO) materials, a novel cobalt-based hydrogen-bonded coordination complex, [complex (1)], is synthesized via a slow evaporation method. Complex (1) crystallizes in the noncentrosymmetric (NCS) space group P21 and features a distorted octahedral Co(II) coordination environment that extends into a 3D framework. Remarkably, complex (1) exhibits a strong second-harmonic generation (SHG) response, approximately 7.4 times greater than that of KH2PO4 (KDP). The pronounced activity arises from robust hydrogen-bonding interactions that suppress antiparallel packing, as well as from the highly distorted, polarizable Co(II) coordination geometry. In addition, complex (1) exhibits an optical bandgap (3.41 eV), indicating UV transparency. These findings make a complex (1) Co(II)-based framework that can be used in UV NLO applications and emphasize it as an effective synthetic approach to the design of polar metal-organic systems with improved optical properties.
AB - In pursuit of new ultraviolet (UV) nonlinear optical (NLO) materials, a novel cobalt-based hydrogen-bonded coordination complex, [complex (1)], is synthesized via a slow evaporation method. Complex (1) crystallizes in the noncentrosymmetric (NCS) space group P21 and features a distorted octahedral Co(II) coordination environment that extends into a 3D framework. Remarkably, complex (1) exhibits a strong second-harmonic generation (SHG) response, approximately 7.4 times greater than that of KH2PO4 (KDP). The pronounced activity arises from robust hydrogen-bonding interactions that suppress antiparallel packing, as well as from the highly distorted, polarizable Co(II) coordination geometry. In addition, complex (1) exhibits an optical bandgap (3.41 eV), indicating UV transparency. These findings make a complex (1) Co(II)-based framework that can be used in UV NLO applications and emphasize it as an effective synthetic approach to the design of polar metal-organic systems with improved optical properties.
KW - UV transparency
KW - coordination polymer
KW - cytidine monophosphate
KW - hydrogen bonding
KW - second harmonic generation
UR - https://www.scopus.com/pages/publications/105029693132
U2 - 10.1002/chem.202503620
DO - 10.1002/chem.202503620
M3 - Article
AN - SCOPUS:105029693132
SN - 0947-6539
VL - 32
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 16
M1 - e03620
ER -