s-net: sqc2216



			    	
		

		

			
				
				
				
				
			
			
				
					Systre crystallographic geometry file (.cgd) 
			
		

	




	

	
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			topcryst
		

	

		



 

Topological data




	
Vertices per primitive translational unit 6 

	
Edges per primitive translational unit 17 

	
Transitivity (vertex,edge)(2,5)

	
Vertex degrees {3,11} 

	
Vertex coordination sequence  [(3, 17, 63, 146, 254, 396, 564, 766, 994, 1256), (11, 46, 111, 206, 331, 486, 671, 886, 1131, 1406)] 

	
Wells’ vertex symbol [3.4^2, 3^4.4^23.5^16.6^12] 

	
Systre key (3, 1, 1, -1, 0, 0, 1, 1, 0, -1, 0, 1, 2, -1, -1, 1, 1, 2, 0, 0, 0, 1, 2, 0, 0, 1, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 6, 0, 0, 0, 2, 2, -1, 0, 0, 2, 2, 0, -1, 0, 2, 3, 0, 0, -1, 2, 4, 0, 0, -1, 2, 5, 1, 1, -1, 2, 6, 1, 1, -1, 3, 6, 1, 0, 0, 4, 5, 0, 1, 0) 




 

Geometric data



Systre equilibrium placement (barycentric embedding) maximising unit cell volume




	
 Spacegroup: Fmmm 


	
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 2.39278 
			 5.97941  
			 1.89112 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

	


	
 Vertex positions:
		

			

				 X-pos 
				 Y-pos 
				 Z-pos 
			


				
 
						 0.125  
						 0.25  
						 0.25  
				
	  
				
 
						 0  
						 0.3  
						 0  
				
	  
		

	

	
Edge end points: 
		

		
		
	






Systre coordinates favouring equal edge-lengths




	
 Spacegroup: Fmmm 



		
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 1.46913 
			 3.48127  
			 1.36624 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

		


		
Vertex positions:
			

				

					 X-pos 
					 Y-pos 
					 Z-pos 
				


					
 
							 0.08802  
							  0.25  
							  0.25  
					
	  
					
 
							 0  
							  0.35531  
							  0  
					
	  
			

		


		
Edge end points: 
			

			
			
		



	

	 


 

Hyperbolic sources





h-nets with faithful topology




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h-nets with edge collapse