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Preparation and Properties of Gadolinium Homoleptic Double- and Triple-Decker Complexes Containing Tetrabenzoporphyrin Ligand Liu Qifeng College of Chemistry and Chemical Technology, Shangqiu Normal University, Shangqiu, Henan, 476000, China lqf8672@126.com Keywords: Tetrabenzoporphyrin(TBP); sandwich-like complexes; gadolinium metal; triple-deckers; double-deckers Abstract: Two novel gadolinium sandwich-type complexes containing tetrabenzoporphyrin (TBP) ligands- Gd(TBP)2 and Gd(TBP)3 were prepared from porphyrin 1 and Gd(acac)3. nH2O under Ar by boiling 1, 2, 4-Tcb for 15~17h and 45~48 h respectively.
Their structures are characterized by Uv-Vis, HR-MS and IR.
Whereas the chemistry and properties of homoleptic sandwich complexes with the same pophyrinato ligands of various lanthanide, actinides and group 4 transition metals have been extensively studied[4], and the heteroleptic analogus containing mixed macrocyclic ligands have also been described[5-6] for an intensive investigation of the π-π interactions, actually all of them are confined to the sandwich-type complexes containing meso-substituted porphyrin ligands except for octaethylporphyrin (OEP) or octamethylporphyrin (OMP).
Mass (m/z) corresponding to the most abundant isotopic peak of the molecular ion of Gd (TBP)2 for C72H40GdN8 is calculated as 1174.2611 and found to be 1174.2636, and mass (m/z) corresponding to the most abundant isotopic peak of the molecular ion of Gd (TBP)3 for C108H60Gd2N12 is calculated as 1840.3540 and found to be 1840.3561, which both confirm the identity of their molecular structure.
Their structures are characterized by Uv-Vis spectra and HR-MS.

From XRD pattern we confirmed the face centered cubic (fcc) structure of the synthesized NiO nanoparticles.
Main crystallographic planes in the XRD pattern are (001), (100), (101), (110) and (111) for Ni(OH)2 which confirms the hexagonal structure of the dried powder (JCPDS NO. 01-1047).
The diffractogram of NiO nanoparticles is indexed based on cubic system shown in figure 2 and the peaks appearing at 2θ = 37.38°, 43.42°, 63.02°, 75.53° and 79.54° are indexed as (111), (200), (220), (311) and (222) respectively and represents pure bunsenite face centered cubic (FCC) crystalline structure of nickel oxide.
Aloysius Sabu, Boby Sabu, Thomas Varghese, Nanosystems: physics, chemistry, mathematics, 5 (3) (2014) 441-449
Amritphale, International Research Journal of Pure &Applied Chemistry. 3(2) (2013) 111-117

GNR/Z composite powder produced by mechanical grinding is porous, like an aggregated chain structure.
Ghosh et al. [8-10] studied the effects of grinding on the particle size distribution and structure of powders obtained from waste rubber as well as the effects of different powders on the physical properties of rubber vulcanizates.
Improvement in physical properties can be attained by reduction of particle size of the powder and modification of particle surface chemistry to make it compatible with the material matrix.
Fig. 1a shows the GNR/Z composite powder to be porous, like an aggregated chain structure wherein the aggregates exist in clusters of irregular shape.
Future studies should focus on the modification of GNR/Z composite powder surface chemistry to make it compatible with the material matrix.

Thermal stability of SrTiO3/Si structure was studied by mean XRD spectra.
AFM images revealed the three-dimensional morphology structure of SrTiO3 thin films; a thicker layer with uniformity on thin film surface was obtained for the increasing time of deposition.
References [1] Thieß, S., (2007) Interface Structure and electronic properties of SrTiO3 and YBa2Cu3O7-δ crystals and thin films.
[2] Johnsson, M., Lemmens, P. (2000) Crystallography and chemistry of perovskites [Internet] 23th June 2005.
B: Microelectronics and Nanometer Structures, vol. 18, pp. 2242-2254, 2000

The configuration and structure were investigated with scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques.
It is an alternative means to form coatings and has several advantages including low processing temperature, high crystallinity of products, application for complex shapes, changing the chemistry or processing conditions can modify the microstructure of coatings.
The analyses showed that the TO2 is main anatase structure, and the as-prepared films were all well crystallinzed, homogeneous.
Nishiguchi, et al., Graded surface structure of bioactive titanium prepared by chemical treatment, Graded surface structure of bioactive titanium. (1999) 100-107
Journal of Molecular Structure 744–747 (2005) 633–640 [10] LIU D.

The results showed that silver myristate/AgBr composite particles are composed of rod-like silver myristate grains with a layer structure and small silver bromide particles formed on the surface of silver myristate.
I(f) 2Theta Crystal plane silver myristate/AgBr 2Theta B 1 1.0 2.262 001 2.242 0.142 2 100.0 4.505 002 4.482 0.159 3 80.0 6.742 003 6.757 0.154 4 10.0 9.072 004 9.020 0.114 5 8.0 11.320 005 11.300 0.155 6 2.0 13.528 006 13.562 0.160 7 2.0 15.812 007 15.829 0.105 JCPDS No.06-0438 (AgBr) 1 100.0 30.960 200 30.922 0.220 2 55.0 44.346 220 44.321 0.221 3 16.0 55.042 222 55.019 0.149 4 14.0 73.261 420 73.222 0.238 Structure of silver myristate/AgBr The XRD pattern of the silver myristate/AgBr sample was shown in Fig. 2 and XRD diffraction peaks were shown in table 1.
These diffraction peaks belonged to (00l) reflections, which were indexed to be a triclinic crystal structure of silver myristate (JCPDS, No. 04-0042).
The composite particles were composed of rod-like silver myristate with well-defined layer structure and small AgBr particles formed on the surface of silver myristate.
Dean: Lange’s Handbook of Chemistry, simplified Chinese translation edition, edited by J.

The adsorption mechanism is supposed that rice husk charcoal firstly imbibes in water and much swells, and then ammonium ion diffuses into the micro pore structure and redistributes upon a steady state.
Biochar is a mixture of cellulose, carboxyl, phenol etc., which is characterized by complicated pore structure and strong capacity of sorption [2].
Therefore, the adsorption mechanism is supposed that rice husk charcoal firstly imbibes in water and much swells, and then ammonium ion diffuses into the micro pore structure and redistributes upon a steady state.
(3) The adsorption mechanism is supposed that rice husk charcoal firstly imbibes in water and much swells, and then ammonium ion diffuses into the micro pore structure and redistributes upon a steady state.
Stavros: Environmental Science Technology Vol. 38 (2004), p. 3632 [7] Xusheng He, Zengchao Geng, Diao She, Baojian Zhang and Haiying Gao: Transactions of the Chinese Society of Agricultural Engineering Vol. 27 (2011), p. 1 (in Chinese) [8] Ning Wang, Yanwei Hou, Jingjing Peng, Jiulan Dai and Chao Cai: Environmental Chemistry Vol.31 (2012), p. 287 (in Chinese) [9] L.

New structure of neural network multi-step prediction that is different from cascade or parallel is given.
PFC control input structure as the key problem, can overcome the other model predictive control law of the control input may be unknown, and has a good tracking ability and strong robustness[7].
In addition, PFC model has no special requirements, can be arbitrary structure.
(a) The side slip angle (b)The yaw rate Fig. 4 Response of vehicle at cornering maneuver (a) The side slip angle (b)The yaw rate Fig. 5 Response of vehicle at lane change Conclusion Vehicle yaw stability is influenced by many uncertain factors, such as structure parameters, running speed, steering angle, road adhesion coefficient and side wind.
Industrial Engineering Chemistry Process Design and Development, 1985b, 24: 484 494.

Effect of Co Concentration on Composition and Electromagnetic Shielding Properties of Ni-Co-P Mingqiu Wang1, a, Jun Yan1, b, Haiping Cui2, b, Shiguo Du1, b, Guo Yi1, b, Li Hongguang1, b 1The 3rd Department of Mechanical Engineering College, Shijiazhuang 050003, China 2Physics and Chemistry Section of Mechanical Engineering College, Shijiazhuang, 050003, China amqwang1514@163.com, byan-junjun@263.net Keywords: Electroless Plating; Ni–Co–P Alloy; Plating Rate; Electromagnetic Shielding Abstract.
The structure of the as-plated Ni–Co–P alloys at all conditions is amorphous.
It was found that the chemical composition, phase structure, and plating rate of Ni–Co–P films formed by electroless plating were determined by the bath composition and operation parameters [8, 9].
As shown in Table 2, it also can be seen that the minimum of phosphorus content is 10.07%, which indicate that crystalline structure of Ni-Co-P is amorphous.
The following results are obtained in this work: Owing to the P content of all samples is over 8%, the structure of the as-plated Ni–Co–P alloys plated at all conditions is amorphous.

Figure 1 shows the structure of Bi2Te3, a breakthrough chalcogen compound in the discovery of thermoelectric materials [10].
Structure of Pristine chalcogenide of Bi2Te3.
Journal of Materials Chemistry C, Advance Article (2024). https://doi.org/10.1039/D4TC01058B
Journal of Materials Chemistry A, 10(25), (2022) 13211–13220. https://doi.org/10.1039/D2TA02334H
Journal of Materials Chemistry C, 12(4), (2024) 987–995. https://doi.org/10.1039/D3TC04122E